API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit

Keep toxic nitrite levels at bay by testing regularly with API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit. Nitrate is produced by nitrifying bacteria in the biological filter as it breaks down ammonia. Detecting unhealthy nitrite levels by testing is important so that you can take action and protect your fish. Kit includes test solution, glass test tube and color chart. Simply add 5 drops of test solution to water sample in test tube, and match results with the color chart. Follow recommendations if any action needs to be taken. Kit tests nitrate levels from 0 to 160 ppm.