API 5-in-1 Test Strips

Keep your fish healthy and thriving by testing your aquarium water regularly with easy-to-use API 5-in-1 TEST STRIPS. API 5-in-1 TEST STRIPS for freshwater and saltwater aquarium help fish owners measure levels of Nitrite, Nitrate, Carbonate & General Hardness, and pH found in aquarium water. In order for fish to thrive, water must be similar to that which could be found in their natural environment. Poor water quality can cause fish stress, illness and even death. Just dip a strip directly into your aquarium and use the color-coded chart to determine if your water is safe, or if adjustments are needed. Then follow the recommendations to treat the water – it’s that simple.

With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

Dip strip directly into aquarium and swirl two times. Remove horizontally with pads facing up. Do not shake off excess water. Compare to the color chart on the tube. Starting with the pad closest to your hand, immediately read General Hardness (GH) and Carbonate Hardness (KH). Wait 30 seconds, then read pH, Nitrite, and Nitrate. Keep wet fingers out of tube. Close tube tightly after removing strip. Store in a cool, dry place. For best results, read in a well-lit area.