API® Nitrite Test Kits quickly and accurately measure the level of nitrite in pond water, reading levels from 0 ppm to 5 ppm. Determines the level of nitrite, a toxic chemical produced when nitrifying bacteria break down ammonia in pond water. If untreated, high nitrite levels may cause pond fish to suffocate & die.
Helps you catch and correct nitrite before it reaches unsafe levels!
Includes test solution, glass test tube, color chart, easy-to-follow instructions