Quickly & accurately measures the level of ammonia in pond water, reading levels from 0 ppm to 7 ppm. Makes 75 tests. Determines the level of toxic ammonia in both new & established ponds. Ammonia is continuously produced from fish waste & urine, uneaten fish food & decaying plants & dead insects. Includes test solution, glass test tube w/ cap, color chart & instructions. 

75 Tests.