FAQs

We recommend cleaning your tank every two weeks to keep conditions ideal, and testing your water weekly to ensure that parameters remain at safe levels for your fish. When cleaning your tank, it is standard to perform a 25% water change by scooping out the top layer of your aquarium water and replacing it with (conditioned) tap water. To clarify: the new water should be treated with a dechlorinator like API STRESS COAT™ water conditioner before being added to your tank. In addition, ensure that you scrape the walls of your tank with an algae scraper (for either glass or acrylic aquariums) as needed to stay ahead of algae growth so it doesn't overrun your aquarium!

Lastly, it may be necessary to syphon your aquarium gravel to eliminate excess waste and uneaten food particles that have gotten buried. Even small amounts of waste can spike ammonia and nitrite levels in your tank, so syphoning is an important part of cleaning.

At API brand, we offer several types of filtration media, tailoring each product to meet the needs of your specific tank. Choose from API BIO-CHEM ZORB™ filtration media, API PHOS-ZORB™ filtration media, and API NITRA-ZORB™ filtration media depending on which water parameters you struggle to control most – BIO-CHEM ZORB filtration media for reducing basic pollutants and waste, PHOS-ZORB filtration media for removing phosphate and silicate and clearing cloudy water, and NITRA-ZORB filtration media for removing harmful nitrite, nitrate, and ammonia. Each of these filtration media pouches are rechargeable – simply rinse in warm tap water after 2 months of use, or whenever you notice water conditions beginning to decline.

Whenever fish release waste, ammonia levels will rise in your aquarium, resulting in unsafe water conditions. Other major factors of aquarium pollution include uneaten fish food, which spikes ammonia levels as it decays, and populating a small aquarium with too many fish for the amount of water.

Avoid overfeeding your fish to reduce the likelihood of uneaten food in your aquarium, and change water every two weeks to eliminate waste that your fish have produced. Test your water regularly to pinpoint where your water quality might be suffering, and troubleshoot with a wide range of API products, including AMMO-LOCK™ water treatment, pH UP™ pH adjuster, pH DOWN™ pH adjuster, and others.

Partial water changes are the best way to remove nitrate and other waste from your aquarium. Because they are the most effective means of eliminating toxins from your water, we recommend partial water changes every two weeks, which will entail scooping out 25% of your existing aquarium water and replacing it with clean, properly conditioned tap water. Partial water changes are much safer and easier on your fish than complete water changes, since good bacteria in your tank are healthy (and essential) for your fish.

If your fish is darting or scratching against objects in your aquarium, is hovering near the top of the aquarium for air, or has suddenly developed white spots on its body, these may be symptoms of disease. Ich, the likeliest of culprits, is a bacterial infection that is highly treatable with API SUPER ICK CURE™ fish remedy, so be sure to treat as soon as you notice symptoms. Other diseases, such as fungal and parasitic infections, may be treated with other fish remedies such as API PIMAFIX™ fish remedy, API MELAFIX™ fish remedy, or API GENERAL CURE™ fish remedy, to name a few options. Browse our full selection of fish remedies to select one that is best matched to your fish's specific symptoms.

Recovery time depends on how soon you began treating your fish after the disease was contracted, and whether you selected the proper fish remedy to target your fish's specific symptoms. If you have diagnosed and treated your fish correctly, you should notice an improvement in your fish's behavior and appetite within one week. For stubborn illnesses, multiple treatments and doses are sometimes necessary (i.e. PIMAFIX™ fish remedy combined with MELAFIX™ fish remedy can be highly effective for treating stubborn bacterial infections); however, it is important to dose according to the directions on a product label unless otherwise instructed by an API Technical Services representative.

API fish remedies target most symptoms of bacterial, parasitic, and fungal infections. However, if your fish has contracted a viral infection, there is no fish remedy that will cure the virus. Much like humans, fish need to cover from viruses on their own, with the aid of treatments like API AQUARIUM SALT and API STRESS COAT™ water conditioner to ease symptoms and expedite recovery time.

Fish gasping at the water's surface indicates a need for oxygen. Increase aeration immediately with air stones or powerheads. High temperature, high nitrite, or high ammonia levels will cause this symptom, so be sure to check all of your water parameters, and if necessary, perform a 25% water change. If the water quality and temperature are safe, gasping is a symptom of disease. Visually inspect the fish for signs of damage or disease.

Injuries to your fish such as open wounds or sores, scale damage, or torn fins should be treated to prevent possible infection. First, observe your fish and their habitat and try to determine the cause of injury. Your fish may be fighting, or could be spawning aggression between potential mates or rivals. The fish may need to be separated quickly to avoid further harm.

If your fish has not been exhibiting fighting behavior, test all water parameters, which are instrumental in keeping your fish healthy and in helping them recover from any potential illness. Next, treat your aquarium with one or more of the following:

-API MELAFIX™ fish remedy for botanical healing of bacterial infections;
-API PIMAFIX™ fish remedy for botanical healing of fungal infections;
-AQUARIUM SALT, if not already in use.

Depending on severity, one or more of these symptoms should be used to adequately treat symptoms.

For white spots that resemble grains of salt on the fins and body of your freshwater fish, treat for Ick, a common parasitic disease, with API SUPER ICK CURE™ fish remedy. Be sure to follow all treatment instructions for this fish remedy.

Most of the time, when your aquarium seems murky, the simplest solution is a water change. This ensures that any waste or debris causing the poor conditions is eliminated, so you can start with a clean slate. Partial water changes usually mean scooping out the top layer (top 25%) of aquarium water and replacing it with dechlorinated tap water (tip: API STRESS COAT™ water conditioner instantly removes chlorine and chloramines from tap water, making it safe for your fish). You should also siphon your gravel during cleaning to remove any visible particles of waste.

If you can’t make time to clean your aquarium right away, a quick solution for cloudy aquarium water is API ACCU-CLEAR™ water clarifier. ACCU-CLEAR water clarifier clumps tiny particles of waste together in your tank to make them more easily removed by your filter, restoring clarity to your aquarium water. Note that it does not remove harmful chemicals, such as ammonia and nitrite, from your aquarium that may be an underlying cause of cloudiness and poor conditions. Combat these toxins using API AMMO-LOCK™ water treatment, or simply perform a partial water change if ammonia is high upon testing.

It is essential to test your water at least weekly to be sure that your conditions are safe for fish. We recommend API FRESHWATER MASTER TEST KIT or API SALTWATER MASTER TEST KIT to quickly and effectively test your freshwater or saltwater aquarium conditions. An even quicker option is API 5-IN-1 TEST STRIPS, which are easily dipped in water and compared to a color chart to analyze results.

If your test results show high ammonia but you aren’t able to do a partial water change right away, dose your aquarium with API AMMO-LOCK™ water treatment. This product converts poisonous ammonia into a non-toxic form, making your aquarium a safer environment for fish until you can perform a partial water change.

The odor may be caused by food waste from overfeeding, or even a dead fish or snail that went unnoticed. Be sure to perform a partial water change or filter cartridge change if necessary, and test ammonia and nitrite levels to confirm that water is safe. Lastly, use API BIO-CHEM ZORB™ filtration media to remove odors from dirty aquarium water.

When reestablishing an existing pond at the beginning of pond season, or when starting a new pond, you should first ensure your pond water is treated properly and is free from debris and dirt. If restarting a pond for the season, change 15-25% of the water to reduce any waste that has built up over the winter. To make new tap water safe for fish, treat with POND STRESS COAT™ water conditioner to eliminate harmful chemicals. Always use a pond conditioner whenever you are adding water to your pond.

For a fast and effective algae control, use API POND ALGAEFIX™ algae control in ornamental ponds with no outflow. API POND ALGAEFIX algae control effectively controls green water algae blooms, string or hair algae (Cladophora), and blanketweed (Oedogonium) in ponds containing live plants and fish. This fast-acting treatment controls algae growth, the formation of new algae, and helps resolve algae problems. Dose every 3 days until algae is controlled. Once algae growth is under control, add one dose per week. Weekly doses will control algae growth and reduce pond maintenance.

If you notice a build-up of algae and sludge or other debris in your pond, use API POND ECOFIX™ SLUDGE DESTROYER™ bacterial cleaner to break down waste and increase the concentration of dissolved oxygen in your pond. The result is cleaner, clearer water and a healthier ecosystem for your fish.

Feed your fish API POND FISH FOOD or API COOL WATER FOOD 2-3 times a day, only as much as they can eat within 5 to 10 minutes. Do not overfeed fish, as uneaten food will quickly turn to waste and spike ammonia in your pond water.

Adding the right number and size of fish to your pond is important. Adding too many leads to poor water quality and health problems. This is especially true in an unfiltered pond with little or no aeration. A general rule for success is to stock your properly filtered and aerated pond with 3-4 inches of fish for every square foot of pond surface area.

Root-bound plants should be divided and re-potted. Aquatic plants need the right nutrients for growth and flowering, and AQUATIC FOOD TABLETS will provide these essential nutrients to potted plants such as water lilies and lotus.

As long as your pond does not freeze to the bottom and an air hole is provided somewhere on the surface of your pond, your fish will survive the winter by hibernating at the very bottom of your pond. You'll want to invest in a pond aerator or de-icer to maintain an oxygen hole in any ice that forms.

Remove any excess debris that has formed at the bottom of your pond with a plastic rake, net, or other device that will not damage the liner or fish in your pond. Your fish will become mostly inactive when water temperatures drop below 50 degrees Fahrenheit, so you should also stop feeding them around this time. Once the weather turns freezing, your fish cease to digest Koi food as they would in temperate weather.

No! Your pond will freeze and thaw in the spring like other bodies of water. Prior to the first extreme temperatures of the season, do take some time to prune any yellowing leaves from your plants, and remove any waste and debris that has fallen into your pond so that your water will be clean and ready for the spring in a few months!

Keep your pond at least 3 feet deep to allow plenty of room for your fish at the bottom during colder months.

Turtles need both land and water to live, so it's recommended that you keep about 75% of the aquarium filled with water for your aquatic turtle. A general rule of thumb when preparing your turtle's habitat is 10 gallons per inch of turtle (remember that as your turtle grows, it will need more space).

Keep in mind that in addition to lots of water, your cold-blooded turtle needs a small, dry area to rest and bask under a heat source. It's recommended to keep the basking temperature between 90-95 degrees Fahrenheit with proper lighting that imitates natural sunlight. Your lighting choice should produce UVA and UVB rays and be on for 10-12 hours per day. It's recommended to use timers to set a naturally-occurring cycle.

It is essential that your turtle get the proper nutrition it needs to grow and remain healthy. We recommend a high-quality source of protein, such as crickets, mealworms, or waxworms to keep your turtle strong. A vegetable or plant source is also important for balanced nutrition with natural vitamins and calcium, so once a week, feed your turtle 1-2 teaspoons of dark, leafy greens, such as kale, collards, or mustard greens.

When starting a new turtle tank or changing your water, it is necessary to use a water conditioner that will eliminate harmful chemicals, such as chlorine, chloramines, and heavy metals, from your tank. API® TURTLE WATER CONDITIONER makes tap water safe for all aquatic reptiles and amphibians by neutralizing the chemicals commonly found in tap water. This treatment works instantly to dechlorinate aquarium and/or vivarium water, so you can start enjoying your underwater world right away.

• Will API ALGAEFIX™ algae control harm fish and aquatic animals in my tank?
• API ALGAEFIX™ algae control will not harm fish or turtles. Turtles and other aquatic reptiles or amphibians can remain in the aquarium during treatment. DO NOT use with freshwater crustaceans including shrimp, crabs, and lobsters.
• My aquarium has been affected by a major algae bloom. Do you carry a product that controls algae, but does not harm my fish?
• API ALGAEFIX™ algae control effectively controls many types of algae in aquariums and will not harm to your fish or plants when used as directed.

• What is API STRESS COAT™ water conditioner?
• API STRESS COAT water conditioner is a tap water conditioner that eliminates harmful chemicals, and uses the added benefit of soothing Aloe Vera to reduce fish stress and promote healing of wounds and damaged tissue.
• Is API STRESS COAT™ water conditioner a dechlorinator?
• Yes, API STRESS COAT water conditioner removes chlorine and neutralizes chloramines and heavy metals found in tap water.
• Is API STRESS COAT™ water conditioner suitable for both freshwater and marine (saltwater) aquariums?
• Yes, API STRESS COAT water conditioner is safe for both freshwater and saltwater aquariums, but is not recommended for use if you have a protein skimmer.
• Is API STRESS COAT™ water conditioner safe for all fish, invertebrates, and aquarium plants?
• Yes, API STRESS COAT water conditioner is safe for all fish, invertebrates, and aquarium plants.
• Does API STRESS COAT™ water conditioner affect the biological filter or the pH of aquarium water?
• No, API STRESS COAT water conditioner does not affect the biological filter (natural aquarium cycle) or your water’s pH levels.
• Can I use API STRESS COAT™ water conditioner with other API products?
• Yes, you can use API STRESS COAT water conditioner with all other API products.
• I accidentally overdosed my fish with API STRESS COAT™ water conditioner. Should I worry?
• No, API STRESS COAT water conditioner will not harm your fish or plants.
• How much API STRESS COAT™ water conditioner should I use?
• If you are using API STRESS COAT water conditioner as a dechlorinator to make tap water safe, you should dose enough for the amount of new water you are adding to the aquarium. If you are using API STRESS COAT water conditioner to help your fish recover from injury or a disease, dose enough for the amount of water in the whole aquarium.

• Is API MELAFIX™ fish remedy recommended for freshwater tanks?
• API MELAFIX fish remedy will treat your fish’s symptoms in freshwater and saltwater aquariums. If you are treating fish in a marine or saltwater aquarium, dose with API MARINE MELAFIX fish remedy.
• How do I diagnose disease in my fish?
• Many disease symptoms will be clearly visible, such as white streaks, lesions, protruding eyes, and other unusual marks or spots on your fish. If you suspect your fish has a disease, it will fall under the categories of fungal, parasitic, or bacterial. One way to diagnose is by matching fish symptoms to the description of a wide range of API fish remedies, which include treatments specific to Ich disease, Betta fish, and various common symptoms (hole-in-the-head, eye cloud, fin & tail rot, etc.).
• Does API MELAFIX™ fish remedy work for fin rot and Ich if my fish is fighting both?
• API MELAFIX fish remedy heals bacterial infections such as fin & tail rot, eye cloud, popeye, body slime, and mouth fungus. As a general note, all API fish remedies can be used in conjunction with each other safely, as long as you are able to follow the directions for both during treatment. We would not recommend using more than two fish remedies at a time unless you are certain of the diagnosis of multiple ailments, so that you can tell which fish remedies are working or not working while troubleshooting a stubborn symptom or disease.
• After treating my aquarium for several days with MELAFIX™ fish remedy, my water turned very foamy, and hasn’t gotten any less foamy over the past three days. Is this normal?
• Yes, it is normal to see some foaming when using API MELAFIX fish remedy, and it is not harmful as long as the proper doses were given. In terms of duration, the foaming of this product can last a variable amount of time depending on what is dissolved in the water. Water that contains a lot of dissolved organics or proteins can experience more foaming that lasts for long periods of time, but in general, if foaming lasts more than a week after discontinuing the treatment, we would recommend more frequent water changes and the addition of ACTIVATED CARBON or BIO-CHEM ZORB™ filtration media in order to eliminate any remaining fish remedy. Make sure that skimmers are turned off during treatment, as this would contribute to excessive foaming. It may be prudent to turn the skimmer pump flow down when it is restarted after treatment, to account for fish remedy residues until they clear from the system.
• What does API MELAFIX™ fish remedy do?
• API MELAFIX fish remedy is a treatment for external bacterial infections in fish, such as fin rot or open wounds.
• Is API MELAFIX™ fish remedy safe with invertebrates such as snails and shrimps? Will it harm the biological filter or aquarium plants?
• API MELAFIX fish remedy is completely safe with invertebrates such as snails and shrimps, and will not harm the biological filter or aquarium plants.
• Can I use API MELAFIX™ fish remedy and API PIMAFIX™ fish remedy together?
• Yes, this combination is in fact recommended if treating stubborn infections. Use each fish remedy at the recommended dose. There is no need to reduce the dose when using both of them.
• Can I use API MELAFIX™ fish remedy with any other API fish remedies or products?
• API MELAFIX fish remedy can be used safely with all other API fish remedies and products.

• Can I use an API ALGAE SCRAPER on any type of aquarium?
• No, API designs two separate scrapers for two different types of aquarium material: glass and acrylic. The appropriate scraper should be used on the corresponding tank to reduce the risk of scratching or damaging your aquarium.
• When should I use the API ALGAE SCRAPER?
• Use the API ALGAE SCRAPER to eliminate unsightly algae on aquarium walls as needed, but roughly once a week at a minimum to ensure tank cleanliness and clarity. Use any time algae accumulates on the walls of your aquarium.

• Can API TURTLE FIX™ fish remedy be used as a preventative?
• API TURTLE FIX fish remedy prevents bacterial growth in wounds.
• Do you have medicine for turtle respiratory infections?
• Since your turtle has a diagnosed medical condition, you’ll need to reach out to your vet to ensure proper treatment for your pet’s exact needs.
• Will API TURTLE FIX™ fish remedy help shell rot or prevent any bacteria?
• API TURTLE FIX fish remedy prevents bacteria growth in wounds, and will treat topical bacterial infections on the body and limbs of aquatic turtles.

• Can animals be introduced immediately after using API TURTLE WATER CONDITIONER, or do I need to wait a period of time?
• Turtles can be added back to their environment immediately after using API TURTLE WATER CONDITIONER.

• How does API BIO-CHEM ZORB™ filtration media work?
• Use API BIO-CHEM ZORB filtration media to clean and clear dissolved organics from your aquarium water, such as colors, odors, and other pollutants. This product fits easily into API filters, and may be used in freshwater, saltwater, and reef aquariums. Use when starting or maintaining an aquarium, or if pollutants are detected.

• What are the dimensions of API NITRA-ZORB™ filtration media bags?
• The actual pouch is 7 x 7 inches square, but because of the media, the final dimensions are 7 x 6.5 inches. The pouch is sized to sit nicely in one of the baskets of canister filters. All of the size 6 pouches (PHOS-ZORB™ filtration media, NITRA-ZORB filtration media, BIO-CHEM ZORB™ filtration media, ACTIVATED CARBON, etc.) will be this size. This pouch does not have any stiffness to it, and may easily be placed in the back of a hang-on-back filter, or other sizes of a canister filter. If the filter is very small, the pouch can be cut open and partial contents can be put into a small filter sock.
• Does API NITRA-ZORB™ filtration media replace other media?
• API NITRA-ZORB filtration media should not fully replace other media; it is for temporary use only.
• How is this product different from API BIO-CHEM ZORB™ filtration media, API PHOS-ZORB™ filtration media, etc.? What makes one a good choice over the other?
• API NITRA-ZORB filtration media specifically works to target and remove ammonia, nitrites, and nitrates from your aquarium, all of which are harmful at high levels for your fish. Use API NITRA-ZORB filtration media if these levels consistently spike. Contrarily, API BIO-CHEM ZORB filtration media works to remove more general aquarium pollutants, such as colors, odors, heavy metals, and toxic gases. API PHOS-ZORB filtration media specifically targets phosphate and silicate in aquarium water.

• What are the measurements of API BIO-CHEM STARS™ biological media?
• Each star is 1x1” in diameter. Use API BIO-CHEM STARS biological media for fresh or saltwater aquariums.
• Do API BIO-CHEM STARS™ biological media come with a netted media bag?
• A filter media bag is not included with API BIO-CHEM STARS biological media.

• Is the API WATER SOFTENER PILLOW rechargeable? How is it recharged?
• API WATER SOFTENER PILLOW can be reused many times before purchase of a new one is necessary. When its effectiveness begins to lessen, dissolve 3 tablespoons of aquarium salt in 7 oz. of tap water. Rinse the pouch in this tap water, then soak it in salt solution for 2 hours. Place back in the filter as is – there is no need to rinse it. When not in use, store the API WATER SOFTENER PILLOW in recharging solution. Do not let it dry out. Replace your API WATER SOFTENER PILLOW when it ceases to function properly after recharging.
• How do I know when API WATER SOFTENER PILLOW needs to be replaced?
• API WATER SOFTENER PILLOW can be recharged and re-used up to 4 times.

• How does API SUPER ACTIVATED CARBON work?
• API SUPER ACTIVATED CARBON removes dissolved particles, as well as odors, colors, toxins, fish remedies, and other dissolved organics that carbon filters may leave behind, which can adversely affect aquarium conditions. Made with a higher grade of carbon, API SUPER ACTIVATED CARBON absorbs more than regular carbon and does not affect pH.
• Is API SUPER ACTIVATED CARBON safe for all types of aquariums?
• Yes, API SUPER ACTIVATED CARBON is safe for all aquarium types, even sensitive reef systems.
• Should I remove my filtration media before dosing with API SUPER ACTIVATED CARBON?
• Products that are designed to remove things from your aquarium, such as filter media, will also remove dosed fish remedy from your tank. For best results from fish remedy, remove your filtration media as you dose.
• What should API ACTIVATED FILTER CARBON be placed in to use properly in a filter (i.e. are there empty filter bags that would be appropriate for this product?)
• API ACTIVATED FILTER CARBON should be placed in the filter inside the filter cartridge, or in a filter media bag. Be sure to follow your filter manufacturer’s instructions.

• Can other fish eat API BETTA FLAKES besides bettas?
• Yes, other fish can safely eat API BETTA FLAKES; however, it is recommended that you feed other species of fish a food that is formulated specifically with their nutritional needs in mind. Other fish require different nutrients than bettas.

• How and when should I use API BETTA WATER?
• API BETTA WATER is pre-conditioned and can be added directly into a Betta aquarium or bowl. Pour as much as needed to fill the aquarium or bowl during water changes or set up of a new aquarium.
• Is API BETTA WATER safe for my betta fish or do I need to treat the water?
• API BETTA WATER is pre-conditioned and instantly safe for bettas.

• How do I diagnose a health problem in my fish?
• Many disease symptoms will be clearly visible, such as white streaks, lesions, protruding eyes, and other unusual marks or spots on your fish. If you suspect your fish has a disease, it will fall under the categories of fungal, parasitic, or bacterial. One way to diagnose is by matching fish symptoms to the description of a wide range of API fish remedies, which include treatments specific to Ich disease, Betta fish, and various common symptoms (hole-in-the-head, eye cloud, fin & tail rot, etc.)
• Does API BETTAFIX™ fish remedy treat popeye?
• This fish remedy is perfect for wounds, ulcers, mouth fungus, and fin & tail rot, but will not treat popeye. For popeye treatment, API MELAFIX™ fish remedy is recommended.
• Is API BETTAFIX™ fish remedy safe with invertebrates such as snails and shrimps? Will it harm the biological filter or aquarium plants?
• API BETTAFIX fish remedy is completely safe with invertebrates such as snails and shrimps, and will not harm the biological filter or aquarium plants.

• My saltwater aquarium has been affected by a major algae bloom. Do you carry a product that controls algae, but does not harm snails?
• We’d recommend API MARINE ALGAEFIX™ algae control, which will not harm fish, corals, snails, and other invertebrates.

• What is the difference between API CICHLID LARGE PELLETS and API CICHLID PELLETS?
• API CICHLID LARGE PELLETS differ in size from API CICHLID PELLETS, and are designed specifically for Cichlids that exceed 5 inches in length.

• Can other fish eat API GOLDFISH FLAKES besides goldfish?
• Yes, other fish can safely eat API GOLDFISH FLAKES; however, it is recommended that you feed other species of fish a food that is formulated specifically with their nutritional needs in mind. Other fish require different nutrients than goldfish.

• Which species of fish are API MARINE FLAKES best for?
• API MARINE FLAKES may be used in any marine or saltwater aquarium for all types of marine fish. For invertebrates and corals, you’ll need to select a food geared specifically toward those species with the proper nutritional requirements.

• How do API TROPICAL MINI PELLETS differ from API TROPICAL PELLETS?
• API TROPICAL MINI PELLETS are formulated for slightly smaller tropical fish for easier consumption.

• Can API ALGAE EATER WAFERS cause an algae bloom in an aquarium?
• API ALGAE EATER WAFERS are not known to create algae blooms, but if any uneaten food remains at the bottom of your tank, the waste may create algae. To prevent this from happening, remove all uneaten food from your aquarium.
• Can API ALGAE EATER WAFERS be used in a tank containing shrimp and snails without causing any adverse effects?
• API ALGAE EATER WAFERS will not harm your shrimp or snails, but they will need a different food source to meet their nutritional needs.

• How does the API VACATION PYRAMID FISH FEEDER work?
• API VACATION PYRAMID FISH FEEDER should be used as a temporary substitute for daily feeding for your fish while you are away on vacation. This block, which contains a highly nutritious formula, is designed to slowly release the proper amount of food to your fish each day you are gone. This eliminates the risk of friends or neighbors overfeeding the fish, which can lead to harmful ammonia spikes in your tank. This particular feeder lasts up to 14 days, but may pollute water if your tank is left completely unattended for this length of time. Use as directed.
• How long does API VACATION PYRAMID FISH FEEDER last?
• The API VACATION PYRAMID FISH FEEDER is designed to last for 14 days; however, this does not mean that your fish can survive without a water change for 14 days. A fish that is eating is still producing waste, and waste builds up over time. If you must use the feeder block for the full 14 days, it is important that a water change occurs at the 7 day mark. This should be a 25% water change (or 50% if it is a tank under 10 gallons) in order to clear out built up waste from them enjoying the block. Remember, a fish tank requires more maintenance than feeding in order to stay happy and healthy for the duration of your vacation. API VACATION PYRAMID FISH FEEDER is a tool that can be used to make things easier when going on vacation, but it is not the only thing that is needed for the fish to survive and thrive if the vacation is a long one.

• What does API ACCU-CLEAR™ water clarifier do?
• API ACCU-CLEAR water clarifier clears green or cloudy water in freshwater aquariums by clumping small particles together into larger pieces, so they can settle to the bottom of your aquarium to be siphoned out, or easily removed by the filter.
• Is API ACCU-CLEAR™ water clarifier safe with fish and plants?
• Yes, API ACCU-CLEAR water clarifier is a safe product for both fish and plants.
• Why can’t API ACCU-CLEAR™ water clarifier be used in marine aquariums?
• In water with a high mineral content, such as the water found in marine (or saltwater) aquariums, API ACCU-CLEAR water clarifier will not clear cloudiness and could even make it worse. However, API ACCU-CLEAR water clarifier will not cause any harm to fish or marine plants.
• Can API ACCU-CLEAR™ water clarifier be used if I have added salt to the water in my freshwater aquarium as part of a supportive treatment for fish?
• Yes, a low level of salt in the water, as is typically the case with freshwater aquariums, is not a problem with API ACCU-CLEAR water clarifier. However, API ACCU-CLEAR water clarifier does not act as a healing treatment for fish like aquarium salt. Its primary purpose is for aquarium cleanliness and clarity.
• Will API ACCU- CLEAR™ water clarifier clear the cloudiness caused by bacterial blooms?
• API ACCU-CLEAR water clarifier will help to clear the cloudiness caused by bacterial blooms, but does not address the underlying cause. As a result, the cloudiness will come back quickly unless the main cause of bacterial blooms is treated.
• Can I repeat the dose of API ACCU-CLEAR™ water clarifier if the cloudiness persists?
• API ACCU-CLEAR water clarifier can be dosed again after 24 hours. However, further doses should not be added after this, as repeated doses will actually make cloudiness worse. API ACCU-CLEAR water clarifier can be dosed once a week as a routine treatment to help keep water clear, but if cloudiness persists, you may want to perform a 25% water change.

• What does API GOLDFISH AQUARIUM CLEANER do?
• API GOLDFISH AQUARIUM CLEANER adds beneficial bacteria to your tank that break down organic matter (which can cause ammonia or nitrite poisoning in your goldfish if left untreated).
• How often should I use API GOLDFISH AQUARIUM CLEANER?
• Use API GOLDFISH AQUARIUM CLEANER when starting a new goldfish tank, and every time you perform a partial water change.

• How often should I use API GOLDFISH CARE PACK?
• This is an ideal product for beginning aquarists, and may be used weekly to ensure a safe aquatic environment for goldfish.

• What does API GOLDFISH PROTECT do?
• API GOLDFISH PROTECT makes tap water safe for goldfish by removing chlorine and chloramines. It also detoxifies ammonia released by goldfish.
• Is API GOLDFISH PROTECT a dechlorinator?
• Yes, API GOLDFISH PROTECT is a suitable dechlorinator on its own for Goldfish tanks.

• When should I use API MARINE STRESS ZYME™ bacterial cleaner?
• You may use API MARINE STRESS ZYME bacterial cleaner weekly, but especially whenever you perform a 25% water change in your aquarium in order to replace beneficial bacteria. This will ensure that you aquarium cycle continues to function normally for your fish.

• Is the effectiveness of API CO2 BOOSTER™ product diminished by aeration and/or water circulation like CO2 gas?
• No, API CO2 BOOSTER product is an organic compound, not a gas.
• Is API CO2 BOOSTER™ a gas?
• No, API CO2 BOOSTER product is an organic compound, not a gas.
• Why can API CO2 BOOSTER™ product be dosed daily, but API LEAF ZONE™ plant fertilizer is only dosed weekly?
• API CO2 BOOSTER product breaks down chemically to supply carbon to plants within 24 hours, thus the reason for re-dosing every 24 hours. The organic compound slowly breaks down over the 24 hour period, allowing the plants to absorb what they need. Meanwhile, API LEAF ZONE plant fertilizer is stable in the water until the nutrients are utilized by the plants, allowing for a weekly dose.
• Can API CO2 BOOSTER™ product be used with shrimp?
• Yes, API CO2 BOOSTER product is safe for use with shrimp. Dosing directions should be followed.
• Does the effectiveness of API CO2 BOOSTER™ product change with the different levels of KH or any other water parameters?
• No, it does not. There is not enough chemical change in the water to effect water parameters.
• Will the required amount of API CO2 BOOSTER™ product vary based upon the number of plants in an aquarium?
• No, simply dose according to the instructions, and you’ll get great results.

• Is API LEAF ZONE™ plant fertilizer safe to use with freshwater invertebrates such as shrimp?
• Yes, API LEAF ZONE plant fertilizer is safe to use with all freshwater invertebrates, such as shrimp or snails.
• Do you need to remove your fish when API LEAF ZONE™ plant fertilizer is applied to your tank?
• No, API LEAF ZONE plant fertilizer is safe to use in tanks with fish.
• Does API LEAF ZONE™ plant fertilizer promote/stimulate algae growth?
• While API LEAF ZONE plant fertilizer does stimulate algae growth, smaller amounts are less likely to result in an algae bloom.

• What does API AMMO LOCK™ ammonia detoxifier do?
• API AMMO LOCK product detoxifies ammonia, converting it into a non-toxic form. This non-toxic ammonia is then removed by the biological filter, or aquarium cycle, in the usual way. API AMMO LOCK ammonia detoxifer is also a dechlorinator and will remove chlorine and chloramines from tap water.
• Will API AMMO LOCK™ ammonia detoxifier work in both freshwater and saltwater aquariums?
• Yes, API AMMO LOCK ammonia detoxifier is effective in both freshwater and saltwater aquariums.
• After API AMMO LOCK™ ammonia detoxifier has detoxified the ammonia, will ammonia levels still show when testing?
• The reduction in ammonia will now appear on API Ammonia Test Kits once you use API AMMO LOCK.
• Does API AMMO LOCK™ ammonia detoxifier reduce the smell of ammonia in aquarium water?
• API AMMO LOCK ammonia detoxifier helps reduce fish stress associated with ammonia presence and promotes healthy gill function. It does not directly eliminate odors.

• Will API® AQUA ESSENTIAL™ affect my aquarium’s protein skimmers?
• AQUA ESSENTIAL will not disrupt any type of protein skimmer. 
• Is there a possibility to overdose AQUA ESSENTIAL in my aquarium?
• When dosing AQUA ESSENTIAL we advise following the directions, but the product formulation does allow for a margin in the event a tank is accidentally dosed with slightly higher amount than specified.
• Is it safe to use AQUA ESSENTIAL in my aquarium with other aquatic animals like snails or shrimp?
• Yes, it is safe to use AQUA ESSENTIAL with other aquatic animals.
• Can I use AQUA ESSENTIAL with other API® products?
• AQUA ESSENTIAL can be used in conjunction with any other API water conditioner or medication.
• Does AQUA ESSENTIAL affect the pH in my aquarium?
• When AQUA ESSENTIAL is dosed according to the label the pH will not be affected.
• Can I double the dose for AQUA ESSENTIAL if I have high levels of chloramines?
• AQUA ESSENTIAL is designed to treat chloramines without the need to use a double dose.  For those customers who automatically double dose there is not a problem using AQUA ESSENTIAL for this, but it is not necessary.
• How often should I wait between doses of AQUA ESSENTIAL?
• Once a dose is provided to the aquarium, it is recommended to wait for 24 to 48 hours between doses.
• How long will AQUA ESSENTIAL bind ammonia, nitrite, and nitrate for?
• Once AQUA ESSENTIAL is dosed it will bind the ammonia, nitrite and nitrate for up to 48 hours or longer.  Testing is the best way to judge if additional dosing is necessary.  In water conditions with highly elevated levels, overstocked with fish, or extremely overfed we always recommend a partial water change after 24 hours to aid the fish in the best water quality.   Also, any ammonia or nitrite that is bound by AQUA ESSENTIAL is metabolically available for beneficial bacteria to process.  So your biological filters will be able to function when using AQUA ESSENTIAL.
• How much ammonia will be removed per dose of AQUA ESSENTIAL?
• When treating for ammonia, with a 5 ml/10 gal. dose of AQUA ESSENTIAL, you should expect a 20-40 ppm reduction in ammonia.  
• How much nitrite will be removed per dose of AQUA ESSENTIAL?
• When treating for nitrite, a 5 mL/10 gal. dose of AQUA ESSENTIAL, you should expect a 15-30 ppm reduction in nitrite.
• How much nitrate will be removed per dose of AQUA ESSENTIAL?
• When treating for nitrate, a 5 mL/10 gal. dose of AQUA ESSENTIAL, you should expect a large reduction of nitrate, ~ 40-60 ppm reduction in nitrate.

• Can I add fish immediately after adding API QUICK START™ nitrifying bacteria to my tank?
• Yes, you may add your fish to your aquarium immediately after dosing with API QUICK START nitrifying bacteria.
• Is API QUICK START™ nitrifying bacteria safe for soft coral?
• Yes, API QUICK START nitrifying bacteria is safe for Soft Coral.

• Can API STRESS ZYME™ bacterial cleaner be added while fish are in the tank?
• API STRESS ZYME bacterial cleaner can be added while fish are in the tank.

• How does API TAP WATER CONDITIONER treatment work?
• API TAP WATER CONDITIONER treatment is a dechlorinator that works to eliminate harmful chlorine, chloramines, and heavy metals from the tap water you add to your aquarium, making it a safe and livable environment for your fish.

• Is API MARINE STRESS COAT™ water conditioner for use in marine aquariums only?
• Yes, API MARINE STRESS COAT water conditioner is solely for use in marine (saltwater) aquariums. Use API STRESS COAT water conditioner for freshwater tanks.

• Should I add API AQUARIUM SALT every time I perform a partial water change?
• Yes, add 1 rounded tablespoon of API AQUARIUM SALT for every 5 gallons or ½ rounded teaspoon for every gallon of water. When doing a water change, add any treatments and supplements to the new water before adding salt to your aquarium.
• Can API AQUARIUM SALT create high general hardness readings?
• API AQUARIUM SALT will not affect the hardness levels of your water.
• Does API AQUARIUM SALT affect the tank pH?
• API AQUARIUM SALT does not raise or lower the pH levels in your tank.
• I think my fish has a fungal infection. Can I use API AQUARIUM SALT to get rid of it?
• API AQUARIUM SALT is intended to keep your fish healthy, and while it does promote disease recovery, it is not a holistic solution to heal and treat fish diseases. API BETTAFIX™ fish remedy, PIMAFIX™ fish remedy, and FUNGUS CURE™ fish remedy are all options that API brand offers to combat fungal infections. These can all be used with the added support of API AQUARIUM SALT.

• Does API E.M. ERYTHROMYCIN™ fish remedy help treat popeye?
• If you catch popeye in its early stages, you can use E.M. ERYTHROMYCIN fish remedy for effective treatment. Some signs to look for include protruding or cloudy eyes, either in one eye or both. If you notice any of these symptoms, dose immediately.
• Is API E.M. ERYTHROMYCIN™ fish remedy safe to use as a preventative if one fish is sick in a tank with other seemingly healthy fish?
• API E.M. ERYTHROMYCIN fish remedy can help prevent a secondary bacterial infection when used with API SUPER ICK CURE fish remedy. If one fish is sick in an otherwise healthy community of fish, you should separate the diseased fish from the others and keep in a quarantine tank until the sick fish exhibits signs of recovery.
• Should I keep the carbon cartridge out of the filter until treatment with API E.M. ERYTHROMYCIN™ fish remedy is finished, or should I only take it out for a few minutes before/after treating the water?
• It’s recommended that you leave the carbon or carbon-containing filter cartridge out of the filter for the entire duration of treatment, removing it directly prior to the first dose of treatment. Products that are designed to remove things from your aquarium, such as carbon, will remove the dose of fish remedy from your tank if it is left within the filter or replaced before the end of treatment. 
• Can API E.M. ERYTHROMYCIN™ fish remedy be used with other API fish remedies?
• API E.M. ERYTHROMYCIN fish remedy is safe for use alongside other API products. API fish remedies may be used in conjunction with each other safely, as long as both sets of directions for separate fish remedies may be followed exactly. We would not recommend using more than two fish remedies at a time unless you are certain of the diagnosis of multiple ailments, so that you can tell which fish remedies are working or not working while troubleshooting a stubborn disease issue.
• Can I use API E.M. ERYTHROMYCIN™ fish remedy to treat any species of fish?
• This API E.M. ERYTHROMYCIN fish remedy may be safely used to treat all types of fish, with the dosage adjusted accordingly based on the gallons per aquarium.
• Should I keep the bio media out of the filter during treatment with API E.M. ERYTHROMYCIN™ fish remedy?
• While any carbon media must be removed, it is essential to the health of your fish that the bio media remains within the filter and the filter remains running during treatment. This will ensure that the water remains aerated and the water quality will be maintained during treatment so that it does not stress your fish. If there is no bio media in your specific filter, we recommend the use API Quick Start during the water change portion of the dosing instructions as well as frequent water testing during treatment. 

• When should I use API FUNGUS CURE™ fish remedy?
• If your fish is exhibiting signs of a fungal infection, treat with API FUNGUS CURE fish remedy. Symptoms of a fungal infection include body slime, fin & trail rot, and eye and mouth fungus (cottony or white patches on fish). Fish that are already sick or injured are highly susceptible to fungal infections in dirty aquariums. API FUNGUS CURE fish remedy controls the spread of infection and works within 48 hours to clear up symptoms.
• Should API FUNGUS CURE™ fish remedy only be used to treat fungal infections?
• API FUNGUS CURE fish remedy works best when used to treat fungal infections, but can also be used to treat secondary bacterial infections. However, we recommend that you use API MELAFIX™ fish remedy or API E.M. ERYTHROMYCIN™ fish remedy to treat bacterial infections most effectively.
• Do I need to remove my carbon or filter cartridge from the aquarium before dosing my tank with API FUNGUS CURE™ fish remedy?
• Products that are designed to remove things from your aquarium, such as filter media, will also remove dosed fish remedy from your tank. For best results from fish remedy, remove your filtration media as you dose.
• Should I keep the carbon cartridge out of the filter until treatment with API FUNGUS CURE fish remedy is finished, or should I only take it out for a few minutes before/after treating the water?
• It’s recommended that you leave the carbon or carbon-containing filter cartridge out of the filter for the entire duration of treatment, removing it directly prior to the first dose of treatment. Products that are designed to remove things from your aquarium, such as carbon, will remove the dose of fish remedy from your tank if it is left within the filter or replaced before the end of treatment. 

• Will API GENERAL CURE™ fish remedy harm turtles or snails?
• API GENERAL CURE fish remedy is safe to use around aquatic turtles and snails, but is only intended to treat disease in fish.
• Will API GENERAL CURE™ fish remedy disrupt the biological filter in my aquarium?
• No, API GENERAL CURE fish remedy should not harm or disrupt the biological filter in your aquarium. For best results, remove activated carbon or filter cartridges from filter and continue aeration, since products that are designed to remove things from your aquarium (such as filter media) will also remove dosed fish remedy from your tank. For best results from fish remedy, remove your filtration media as you dose.

• Can API MELAFIX™ fish remedy and API PIMAFIX™ fish remedy be used together?
• Yes, API PIMAFIX fish remedy can be used with all API products, including other fish remedies and treatments.
• Do I need to remove my filtration media before using API PIMAFIX™ fish remedy?
• Products that are designed to remove things from your aquarium, such as filter media, will also remove dosed fish remedy from your tank. For best results from fish remedy, remove your filtration media as you dose.

• Is API LIQUID SUPER ICK CURE™ fish remedy safe for snails?
• API LIQUID SUPER ICK CURE fish remedy is safe for snails, but it is recommended that you use half the normal dosage.
• Should I remove my filtration media before using API LIQUID SUPER ICK CURE™ fish remedy?
• Products that are designed to remove things from your aquarium, such as filter media, will also remove dosed fish remedy from your tank. For best results from the fish remedy, remove your filtration media as you dose with API LIQUID SUPER ICK CURE fish remedy.
• Is API LIQUID SUPER ICK CURE™ fish remedy safe for freshwater shrimp?
• API LIQUID SUPER ICK CURE fish remedy is for use in freshwater aquariums only with tropical fish and marine fish, not shrimp.
• Will API LIQUID SUPER ICK CURE™ fish remedy kill my live rock, and should I shut off my UV sterilizer?
• API SUPER ICK CURE fish remedy is not appropriate for use in reef aquariums, or aquariums with live rocks. Your UV Sterilizer will not be affected by this treatment. For best results, remove activated carbon or filter cartridge from filter and continue aeration.
• Will API LIQUID SUPER ICK CURE™ fish remedy discolor an acrylic tank?
• API SUPER ICK CURE fish remedy and many other API fish remedies will discolor aquarium water. It is important to remove any ornaments or fake plants that you may not want to stain prior to dosing. Do remember that the discoloration is part of the fish remedy, so do not try to remove colors until the end of the treatment. The discoloration will naturally fade with time and light exposure, but can be eliminated more quickly by performing frequent partial water changes and adding API ACTIVATED CARBON or API BIO-CHEM ZORB™ filtration media to the filter.

• Why test pH?
• pH is the measure of acidity in your water. A pH reading of 7.0 is neutral, a pH higher than 7.0 is alkaline, and a pH lower than this level is acidic. It is important to keep your aquarium at the appropriate pH level to ensure optimal water quality for your specific fish species, as different types of fish require different pH levels for their habitats. API® FRESHWATER MASTER TEST KIT will enable you to test the pH levels in your water as often as needed!
• Why test for Ammonia?
• Fish continually release ammonia directly into the water through their gills, urine, and solid waste. Uneaten food and other waste also add ammonia to the water. A natural way that your aquarium handles this ammonia is through the biological filter, or natural aquarium cycle. However, as with any natural processes, imbalances can occur. This is why it’s important to regularly test for the presence of ammonia, which can spike unexpectedly in your aquarium. As soon as it is detected, ammonia should be removed, otherwise it will damage your fish’s gill membranes and harm their respiration, which can eventually result in fish death. Even small amounts of ammonia stress fish, suppressing their immune systems and increasing the likelihood of disease outbreaks. You can remove ammonia from your tank by performing a partial water change, and by dosing with a solution specifically designed to treat ammonia. Test frequently for high ammonia using API FRESHWATER MASTER TEST KIT.
• Why test for Nitrite?
• Testing for the presence of toxic nitrite is essential, so that if it is detected, steps can be taken to remove it. If left untreated, nitrite in the water will hinder normal fish respiration, eventually leading to fish death. Even small amounts or low levels of nitrite stress fish, suppressing their immune systems and increasing the likelihood of disease, which is why it’s important to test for nitrite using API FRESHWATER MASTER TEST KIT. You can remove nitrite from your tank by performing a partial water change.
• What does the FRESHWATER MASTER TEST KIT test for?
• The FRESHWATER MASTER TEST KIT measures pH, high range pH, ammonia, nitrite, and nitrate in your freshwater aquarium.
• What is included with the FRESHWATER MASTER TEST KIT?
• The kit includes seven test solutions, easy-to-read instruction, glass test tubes, and a color chart.

• What water parameters does API SALTWATER MASTER TEST KIT test for?
• API SALTWATER MASTER TEST KIT tests for high range pH, ammonia, nitrite, and nitrate, all of which need to be regularly monitored for proper water conditions for your fish.
• Can I use API SALTWATER MASTER TEST KIT for reef aquariums (as opposed to API REEF MASTER TEST KIT)?
• You can use API SALTWATER MASTER TEST KIT to test parameters in an aquarium with reefs; however, for best results, it is recommended that you use API REEF MASTER TEST KIT.
• What is included with the SALTWATER MASTER TEST KIT?
• The kit includes six test solutions, easy-to-read instruction, glass test tubes, and a color chart.

• What is the difference between API SALTWATER MASTER TEST KIT and API REEF MASTER TEST KIT?
• Both of these kits may be used in marine aquariums; however, the API SALTWATER MASTER TEST KIT will allow you to test for ammonia, high range pH, nitrite, and nitrate in your tank, while API REEF MASTER TEST KIT tests for calcium, carbonate hardness, phosphate, and nitrate – all of which need to be maintained at appropriate levels for a thriving reef aquarium.

• What does API pH UP™ pH adjuster do?
• API pH UP pH adjuster is added to water to raise pH levels, making water more alkaline.
• Can I use repeated doses of API pH UP™ pH adjuster?
• Yes, you can use API pH UP pH adjuster once daily in your aquarium, but you should always test the pH between doses.
• Can API pH UP™ pH adjuster be used in marine aquariums?
• API pH UP pH adjuster will not cause any harm to marine aquariums, but it is designed specifically for fine-tuning pH, and is not strong enough to have an effect on marine aquarium levels.
• Can API pH UP™ pH adjuster be used with live plants?
• Yes, API pH UP pH adjuster and API pH DOWN™ pH adjuster are safe for live plants.
• Does API pH UP™ pH adjuster also increase KH?
• Yes, pH UP™ pH adjuster can help to increase KH.

• What do API PROPER pH™ powders do?
• API PROPER pH powders are pH buffers. They set the pH of aquarium water at a particular level, and also function as a dechlorinator. This means no additional dechlorinator is needed when using these products to treat water.
• I used API PROPER pH™ and my water has gone very cloudy. Is this normal, and is the cloudiness safe for my fish?
• The cloudiness that can be caused by API PROPER pH powders is harmless. It usually settles on its own in 24-48 hours, but the use of API ACCU-CLEAR™ water clarifier may be used to improve it. This cloudiness occurs when API PROPER pH powder is in used in water with high hardness levels, and is caused by the hardness minerals coming out of the solution. To avoid hazy water, we recommend reducing hardness levels to 100 ppm CaCO3.
• I am trying to lower my water with API PROPER pH™ powder, but it remains high. Why is this?
• Normally, one dose will set the pH. However, some tap water sources used in freshwater aquariums are very hard or alkaline and are strongly buffered at pH 8.0 and higher. In this case, it may require two doses of API PROPER pH™ powder to overcome the natural buffers and set pH to a desirable level. In this situation, it may be advisable to soften the water first.
• Is API PROPER pH™ powder safe with invertebrates and plants?
• API PROPER pH powder is safe with invertebrates, but the powders in API PROPER pH 6.5, 7.0, and 7.5 bind to some trace elements which are needed as nutrients by live plants. Therefore, we do not recommend using these API PROPER pH powders with live aquarium plants.
• Is API PROPER pH™ powder a phosphate buffer?
• API PROPER pH 8.2 is a bicarbonate and carbonate buffer, and contains no phosphate. API PROPER pH 6.5, 7.0, and 7.5 are phosphate buffers. Phosphate buffers are the most reliable buffers for freshwater aquariums. They are non-toxic to fish and easily “lock in” the pH for extended periods of time.
• Do phosphate buffers stimulate algae growth?
• No, phosphate buffers combine with essential trace elements, like iron, causing nutrient deficiencies. PROPER pH™ 6.5, 7.0, and 7.5 should not be used in aquariums where algal growth is desirable.
• Will API PROPER pH™ powder increase carbonate hardness?
• Carbonate hardness, also known as “alkalinity” and “KH,” is the level of bicarbonate and carbonate ions in water. The KH level is also a measurement of water’s ability to resist pH change. API PROPER pH 8.2 contains bicarbonate and carbonate buffers, and will directly increase carbonate hardness. API PROPER pH 6.5, 7.0, and 7.5 contain no carbonate hardness, but will cause a spike in KH as measured with KH test kits. These kits work by acidifying the water in the test tube, drop by drop, with a test reagent. When the water sample is adequately acidified, a color change occurs in the test tube. This is called the “end point.” The number of drops of test reagent required to acidify the sample (causing a color change) indicates the level of KH. Phosphate buffers strongly resist pH change, and will be measured just like bicarbonate and carbonate buffers. Therefore, API PROPER pH 6.5, 7.0, and 7.5, will cause an increase in KH measurements.

• What do API PROPER pH™ powders do?
• API PROPER pH powders are pH buffers. They set the pH of aquarium water at a particular level, and also function as a dechlorinator. This means no additional dechlorinator is needed when using these products to treat water.
• I used API PROPER pH™ and my water has gone very cloudy. Is this normal, and is the cloudiness safe for my fish?
• The cloudiness that can be caused by API PROPER pH powders is harmless. It usually settles on its own in 24-48 hours, but the use of API ACCU-CLEAR™ water clarifier may be used to improve it. This cloudiness occurs when API PROPER pH powder is in used in water with high hardness levels, and is caused by the hardness minerals coming out of the solution. To avoid hazy water, we recommend reducing hardness levels to 100 ppm CaCO3.
• I am trying to lower my water with API PROPER pH™ powder, but it remains high. Why is this?
• Normally, one dose will set the pH. However, some tap water sources used in freshwater aquariums are very hard or alkaline and are strongly buffered at pH 8.0 and higher. In this case, it may require two doses of API PROPER pH™ powder to overcome the natural buffers and set pH to a desirable level. In this situation, it may be advisable to soften the water first.
• Is API PROPER pH™ powder safe with invertebrates and plants?
• API PROPER pH powder is safe with invertebrates, but the powders in API PROPER pH 6.5, 7.0, and 7.5 bind to some trace elements which are needed as nutrients by live plants. Therefore, we do not recommend using these API PROPER pH powders with live aquarium plants.
• Is API PROPER pH™ powder a phosphate buffer?
• API PROPER pH 8.2 is a bicarbonate and carbonate buffer, and contains no phosphate. API PROPER pH 6.5, 7.0, and 7.5 are phosphate buffers. Phosphate buffers are the most reliable buffers for freshwater aquariums. They are non-toxic to fish and easily “lock in” the pH for extended periods of time.
• Do phosphate buffers stimulate algae growth?
• No, phosphate buffers combine with essential trace elements, like iron, causing nutrient deficiencies. PROPER pH™ 6.5, 7.0, and 7.5 should not be used in aquariums where algal growth is desirable.
• Will API PROPER pH™ powder increase carbonate hardness?
• Carbonate hardness, also known as “alkalinity” and “KH,” is the level of bicarbonate and carbonate ions in water. The KH level is also a measurement of water’s ability to resist pH change. API PROPER pH 8.2 contains bicarbonate and carbonate buffers, and will directly increase carbonate hardness. API PROPER pH 6.5, 7.0, and 7.5 contain no carbonate hardness, but will cause a spike in KH as measured with KH test kits. These kits work by acidifying the water in the test tube, drop by drop, with a test reagent. When the water sample is adequately acidified, a color change occurs in the test tube. This is called the “end point.” The number of drops of test reagent required to acidify the sample (causing a color change) indicates the level of KH. Phosphate buffers strongly resist pH change, and will be measured just like bicarbonate and carbonate buffers. Therefore, API PROPER pH 6.5, 7.0, and 7.5, will cause an increase in KH measurements.

• What do API PROPER pH™ powders do?
• API PROPER pH powders are pH buffers. They set the pH of aquarium water at a particular level, and also function as a dechlorinator. This means no additional dechlorinator is needed when using these products to treat water.
• I used API PROPER pH™ and my water has gone very cloudy. Is this normal, and is the cloudiness safe for my fish?
• The cloudiness that can be caused by API PROPER pH powders is harmless. It usually settles on its own in 24-48 hours, but the use of API ACCU-CLEAR™ water clarifier may be used to improve it. This cloudiness occurs when API PROPER pH powder is in used in water with high hardness levels, and is caused by the hardness minerals coming out of the solution. To avoid hazy water, we recommend reducing hardness levels to 100 ppm CaCO3.
• I am trying to lower my water with API PROPER pH™ powder, but it remains high. Why is this?
• Normally, one dose will set the pH. However, some tap water sources used in freshwater aquariums are very hard or alkaline and are strongly buffered at pH 8.0 and higher. In this case, it may require two doses of API PROPER pH™ powder to overcome the natural buffers and set pH to a desirable level. In this situation, it may be advisable to soften the water first.
• Is API PROPER pH™ powder safe with invertebrates and plants?
• API PROPER pH powder is safe with invertebrates, but the powders in API PROPER pH 6.5, 7.0, and 7.5 bind to some trace elements which are needed as nutrients by live plants. Therefore, we do not recommend using these API PROPER pH powders with live aquarium plants.
• Is API PROPER pH™ powder a phosphate buffer?
• API PROPER pH 8.2 is a bicarbonate and carbonate buffer, and contains no phosphate. API PROPER pH 6.5, 7.0, and 7.5 are phosphate buffers. Phosphate buffers are the most reliable buffers for freshwater aquariums. They are non-toxic to fish and easily “lock in” the pH for extended periods of time.
• Do phosphate buffers stimulate algae growth?
• No, phosphate buffers combine with essential trace elements, like iron, causing nutrient deficiencies. PROPER pH™ 6.5, 7.0, and 7.5 should not be used in aquariums where algal growth is desirable.
• Will API PROPER pH™ powder increase carbonate hardness?
• Carbonate hardness, also known as “alkalinity” and “KH,” is the level of bicarbonate and carbonate ions in water. The KH level is also a measurement of water’s ability to resist pH change. API PROPER pH 8.2 contains bicarbonate and carbonate buffers, and will directly increase carbonate hardness. API PROPER pH 6.5, 7.0, and 7.5 contain no carbonate hardness, but will cause a spike in KH as measured with KH test kits. These kits work by acidifying the water in the test tube, drop by drop, with a test reagent. When the water sample is adequately acidified, a color change occurs in the test tube. This is called the “end point.” The number of drops of test reagent required to acidify the sample (causing a color change) indicates the level of KH. Phosphate buffers strongly resist pH change, and will be measured just like bicarbonate and carbonate buffers. Therefore, API PROPER pH 6.5, 7.0, and 7.5, will cause an increase in KH measurements.

• What do API PROPER pH™ powders do?
• API PROPER pH powders are pH buffers. They set the pH of aquarium water at a particular level, and also function as a dechlorinator. This means no additional dechlorinator is needed when using these products to treat water.
• I used API PROPER pH™ and my water has gone very cloudy. Is this normal, and is the cloudiness safe for my fish?
• The cloudiness that can be caused by API PROPER pH powders is harmless. It usually settles on its own in 24-48 hours, but the use of API ACCU-CLEAR™ water clarifier may be used to improve it. This cloudiness occurs when API PROPER pH powder is in used in water with high hardness levels, and is caused by the hardness minerals coming out of the solution. To avoid hazy water, we recommend reducing hardness levels to 100 ppm CaCO3.
• I am trying to lower my water with API PROPER pH™ powder, but it remains high. Why is this?
• Normally, one dose will set the pH. However, some tap water sources used in freshwater aquariums are very hard or alkaline and are strongly buffered at pH 8.0 and higher. In this case, it may require two doses of API PROPER pH™ powder to overcome the natural buffers and set pH to a desirable level. In this situation, it may be advisable to soften the water first.
• Is API PROPER pH™ powder safe with invertebrates and plants?
• API PROPER pH powder is safe with invertebrates, but the powders in API PROPER pH 6.5, 7.0, and 7.5 bind to some trace elements which are needed as nutrients by live plants. Therefore, we do not recommend using these API PROPER pH powders with live aquarium plants.
• Is API PROPER pH™ powder a phosphate buffer?
• API PROPER pH 8.2 is a bicarbonate and carbonate buffer, and contains no phosphate. API PROPER pH 6.5, 7.0, and 7.5 are phosphate buffers. Phosphate buffers are the most reliable buffers for freshwater aquariums. They are non-toxic to fish and easily “lock in” the pH for extended periods of time.
• Do phosphate buffers stimulate algae growth?
• No, phosphate buffers combine with essential trace elements, like iron, causing nutrient deficiencies. PROPER pH™ 6.5, 7.0, and 7.5 should not be used in aquariums where algal growth is desirable.
• Will API PROPER pH™ powder increase carbonate hardness?
• Carbonate hardness, also known as “alkalinity” and “KH,” is the level of bicarbonate and carbonate ions in water. The KH level is also a measurement of water’s ability to resist pH change. API PROPER pH 8.2 contains bicarbonate and carbonate buffers, and will directly increase carbonate hardness. API PROPER pH 6.5, 7.0, and 7.5 contain no carbonate hardness, but will cause a spike in KH as measured with KH test kits. These kits work by acidifying the water in the test tube, drop by drop, with a test reagent. When the water sample is adequately acidified, a color change occurs in the test tube. This is called the “end point.” The number of drops of test reagent required to acidify the sample (causing a color change) indicates the level of KH. Phosphate buffers strongly resist pH change, and will be measured just like bicarbonate and carbonate buffers. Therefore, API PROPER pH 6.5, 7.0, and 7.5, will cause an increase in KH measurements.

• How often should I feed my fish API POND FISH FOOD?
• It is important with any type of fish not to overfeed. You should follow feeding instructions based upon the number of gallons in your tank, and as a general rule, only feed as many pellets as your fish will consume within a few minutes. You may feed your fish once or twice per day at most.

• Is API COOL WATER FOOD designed for a specific type of fish?
• API COOL WATER FOOD may be fed to all pond fish, but is most appropriate when water temperatures fall between 41-65 degrees Fahrenheit. Feed your fish 2-3 times per day, as much as they can eat between 5-10 minutes.

• Is API POND ACCU-CLEAR™ water clarifier safe around pets?
• API POND ACCU-CLEAR water clarifier is for ornamental pond use only, but is safe for fish, pond plants, and surrounding wildlife when used as directed.

• Is API POND ECOFIX™ SLUDGE DESTROYER™ bacterial cleaner safe for all wildlife?
• API POND ECOFIX SLUDGE DESTROYER™ bacterial cleaner is safe for fish and surrounding wildlife when used as directed.

• What is included in the API pH TEST KIT? How does it work?
• The API pH TEST KIT monitors pH levels in your freshwater aquarium to maintain a healthy environment for fish. This kit contains one test solution bottle, an instructional booklet, one glass test tube, and a color chart for quick, easy, and precise comparison.

• Is it correct for the #2 bottle in the API AMMONIA TEST KIT to have a slightly bigger hole in the spout than the #1 does? I’m concerned my test kit isn’t accurate because of this.
• The dropper tips are all the same, but the viscosity of the liquids are different. Drops may appear to be larger coming out due to the thickness of the drop.

• Do I need to test calcium parameters in a freshwater aquarium?
• No, calcium levels need to be monitored and maintained in reef or marine aquariums, as improper levels can be harmful to corals and crustaceans.
• How often should I test my calcium levels?
• For best results, test calcium levels with API CALCIUM TEST KIT in your saltwater tank weekly.

• When should I test for copper in my aquarium?
• Use the API COPPER TEST KIT to ensure copper levels are healthy for plant photosynthesis and to prevent anemia in fish.
• What type of aquarium should API COPPER TEST KIT be used with?
• API COPPER TEST KIT can be used to test for copper in both freshwater and saltwater aquariums.

• What is Carbonate Hardness (KH)?
• Carbonate hardness, also known as alkalinity, is the measure of carbonate and bicarbonate concentrations dissolved in water. These minerals are present in municipal, well, and bottled water. The level of carbonate hardness in tap and bottled water depends on the source of the water and the treatment processes it has undergone. Carbonate hardness helps stabilize pH in the aquarium. An aquarium with a low KH level will tend to be acidic. Aquariums with very low KH are subject to rapid pH shifts if not monitored carefully. Water with a high KH level usually has a high pH.
• What is General Hardness (GH)?
• General hardness is the measure of calcium and magnesium ion concentrations dissolved in water. These minerals are present in municipal, well, and bottled spring water. The level of general hardness in tap and bottled water depends on the source of the water and the treatment processes it has undergone. Hard water is high in calcium and magnesium, while soft water is low in these minerals.

• Are high nitrate levels harmful to fish?
• High nitrate is harmful to fish, but is significantly less toxic than ammonia or nitrite. Effects of high nitrate levels are more gradual if parameters go untreated – fish will eventually lose their appetite and grow sluggish and inactive over time. High nitrate also contributes to rapid algae blooms in aquariums.
• How often should I use API NITRATE TEST KIT?
• Use API NITRATE TEST KIT weekly or bi-weekly to ensure your nitrate levels are safe for fish, or whenever you suspect you may have high nitrate levels in your tank.

• For what type of tank is API PHOSPHATE TEST KIT most appropriate? Why should I test for phosphate?
• Phosphate enters your aquarium through fish and invertebrate waste, and excess phosphate can cause problematic conditions in your tank. Use the API PHOSPHATE TEST KIT to test for high phosphate levels weekly. It may be used for both marine (saltwater) and freshwater aquariums.

• How do API 5-IN-1 TEST STRIPS work?
• Test strips are a fast and easy way to test your aquarium water parameters! Simply dip a strip into your water and swirl two times, then remove the strip and hold flat to evaluate color changes. Compare these colors to the color chart included with API 5-IN-1 TEST STRIPS, and treat your water accordingly.
• How accurate are API 5-IN-1 TEST STRIPS?
• API 5-IN-1 TEST STRIPS are highly accurate in measuring water parameters when used as directed.

• Do API AMMONIA TEST STRIPS test only for Ammonia? How accurate are they in reflecting high ammonia levels?
• Yes, API AMMONIA TEST STRIPS test solely for ammonia in your aquarium water. Test strips are extremely accurate in showing high ammonia levels – simply compare your results to the precise color charts that come with the product, and take the appropriate actions to correct unsafe parameters for your fish.
• Can I use API AMMONIA TEST STRIPS in any aquarium?
• Yes, these test strips may be used in both fresh and saltwater aquariums.

• Do API pH TEST STRIPS only test pH levels in water?
• Yes, API pH TEST STRIPS exclusively test pH levels from 6.0 to 9.0 in freshwater and saltwater aquariums.
• Are API pH TEST STRIPS as accurate as API pH TEST KIT?
• Yes, both API products will alert you if your pH is too high or low, enabling you to take the proper steps for correction.

• Should API POND ALGAEFIX™ algae control and ECOFIX™ bacterial cleaner be used at the same time, or should the sludge remover be added after all the API ALGAEFIX algae control are completed?
• It is best to use API ALGAEFIX algae solution on its own until algae is under control.
• How much API POND ALGAEFIX™ algae control is needed per gallon?
• To ensure accurate dosing of API POND ALGAEFIX algae control, determine pond volume before use. Add 1 teaspoon for each 50 gallons of pond/fountain water, or ¼ cup for each 600 gallons of pond or fountain water. Thoroughly mix into pond water by adding near the pump outflow, waterfall, or aeration device. API POND ALGAEFIX algae control may be mixed in a bucket of the pond/fountain water and dispersed evenly around the pond. Repeat dose every 3 days until algae is controlled. Be prepared to siphon out dead algae. Once algae growth is under control, add one dose per week. Weekly doses will control algae growth and reduce pond maintenance.
• Can API POND ALGAEFIX™ algae control be used in concrete fountains?
• API ALGAEFIX algae control is designed for use in synthetic-lined ponds and fountains only.

• Is API POND-ZYME™ SLUDGE DESTROYER™ bacterial cleaner safe to use with small fountains and ponds?
• API POND-ZYME SLUDGE DESTROYER bacterial cleaner can safely be used in ponds and fountains.
• Is API POND-ZYMETM SLUDGE DESTROYER™ bacterial cleaner safe to use with domestic animals?
• While API POND-ZYME SLUDGE DESTROYER bacterial cleaner can safely be used in a pond environment and will not harm mammals if they drink from or swim in treated water, it is only intended for use in ponds with fish and pond plants.
• Should we turn off the pond pump to give API POND-ZYMETM SLUDGE DESTROYER™ bacterial cleaner time to sink before the skimmer pulls it in?
• The pump should be left on when using API POND-ZYME SLUDGE DESTROYER bacterial cleaner.

• What does API POND MELAFIX™ fish remedy do?
• API POND MELAFIX fish remedy is a treatment for external bacterial infections in fish, such as fin rot or open wounds.
• Is API POND MELAFIX™ fish remedy safe with invertebrates such as snails and shrimp? Will it harm the biological filter or pond plants?
• Yes, API POND MELAFIX fish remedy is completely safe with invertebrates such as snails and shrimps. It will not harm the natural aquarium cycle or plants.

• Do API AQUATIC PLANT FOOD TABLETS need to be inserted into soil to work?
• API AQUATIC PLANT FOOD TABLETS can just be dropped in your water or inserted into the soil for optimal results.
• Can I use API AQUATIC PLANT FOOD TABLETS in an aquarium?
• Yes, API AQUATIC PLANT FOOD TABLETS may be used in an aquarium.

• What does API POND STRESS COAT™ water conditioner do?
• API POND STRESS COAT water conditioner removes chlorine and neutralizes chloramines and heavy metals. It also reduces stress in pond fish, and promotes the healing of wounds and regeneration of damaged tissue with Aloe Vera.
• Is API POND STRESS COAT™ water conditioner a dechlorinator?
• Yes, API POND STRESS COAT water conditioner is a dechlorinator, and will make pond water safe for your fish.
• Is API POND STRESS COAT™ water conditioner safe for all fish, invertebrates, and plants?
• Yes, API POND STRESS COAT water conditioner is safe for all wildlife.
• Does API POND STRESS COAT™ water conditioner affect the biological filter or the pH of pond water?
• No, POND STRESS COAT water conditioner will not adversely affect the biological filter or pH levels.
• Can I use API POND STRESS COAT™ water conditioner with other API products?
• Yes, you can use this product with all other API products.
• I accidentally overdosed my fish with API POND STRESS COAT™ water conditioner. Should I worry?
• No, API POND STRESS COAT water conditioner will not harm your fish or plants.
• How much API POND STRESS COAT™ water conditioner should I use?
• If you are using API POND STRESS COAT water conditioner as a dechlorinator to make tap water safe, you should dose enough for the amount of the new water you are adding to the aquarium. If you are using API POND STRESS COAT water conditioner to help fish recover from injury or disease, then you should dose enough for the amount of water in the whole pond.

• What is the proper way to clean a test tube?
• These test tubes can be cleaned with hot water and then drip dried.

• Will API® Pond AQUA ESSENTIAL™ affect my pond’s protein skimmers?
• Pond AQUA ESSENTIAL will not disrupt any type of protein skimmer.
• Is there a possibility to overdose Pond AQUA ESSENTIAL in my pond?
• When dosing Pond AQUA ESSENTIAL we advise following the directions, but the product formulation does allow for a margin of error in the event a pond is accidentally dosed with slightly higher amount than specified.
• Is it safe to use Pond AQUA ESSENTIAL in my pond with other aquatic animals like snails or turtles?
• Yes, it is safe to use Pond AQUA ESSENTIAL with other aquatic animals.
• Can I use Pond AQUA ESSENTIAL with other API products?
• Pond AQUA ESSENTIAL can be used in conjunction with any other API water conditioner or medication.
• Will Pond AQUA ESSENTIAL affect the pH in my pond?
• When Pond AQUA ESSENTIAL is dosed according to the label the pH will not be affected.
• Can I double the dose for Pond AQUA ESSENTIAL if I have high levels of chloramines?
• Pond AQUA ESSENTIAL is designed to treat chloramines without the need to use a double dose.  For those customers who automatically double dose there is not a problem using Pond AQUA ESSENTIAL for this, but it is not necessary.
• How often should I wait between doses of Pond AQUA ESSENTIAL?
• Once a dose is provided to the pond, it is recommended to wait for 24 to 48 hours between doses.
• How long will Pond AQUA ESSENTIAL bind ammonia, nitrite, and nitrate for?
• Once Pond AQUA ESSENTIAL is dosed it will bind the ammonia, nitrite and nitrate for up to 48 hours or longer.  Testing is the best way to judge if additional dosing is necessary.  In water conditions with highly elevated levels, overstocked with fish, or extremely overfed we always recommend a partial water change after 24 hours to aid the fish in the best water quality.   Also, any ammonia or nitrite that is bound by Pond AQUA ESSENTIAL is metabolically available for beneficial bacteria to process.  So your biological filters will be able to function when using Pond AQUA ESSENTIAL.
• How much ammonia will be removed per dose of Pond AQUA ESSENTIAL?
• When treating for ammonia, with a 5 ml/10 gal. dose of Pond AQUA ESSENTIAL, you should expect a 20-40 ppm reduction in ammonia, based on the accuracy of your measurement of your pond volume.
• How much nitrite will be removed per dose of Pond AQUA ESSENTIAL?
• When treating for nitrite, a 5 mL/10 gal. dose of Pond AQUA ESSENTIAL, you should expect a 15-30 ppm reduction in nitrite, based on the accuracy of your measurement of your pond volume.
• How much nitrate will be removed per dose of Pond AQUA ESSENTIAL?
• When treating for nitrate, a 5 mL/10 gal. dose of Pond AQUA ESSENTIAL, you should expect a large reduction of nitrate, ~ 40-60 ppm reduction in nitrate, based on the accuracy of your measurement of your pond volume.