API Nitrite Test Kit Fresh/SaltwaterNitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it breaks down ammonia. Low levels of nitrite inhibit respiration and suppress the immune system, while high levels cause suffocation in fish. The API® NITRITE TEST KIT reads nitrite levels quickly and accurately in your tank, and tests parameters from 0 to 5 ppm.Contains 180 tests and includes 1 test solution, easy-to-ready instructions, glass test tube and color chart FAQsAre 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.
