Copper exists in water as a soluble salt or as suspended solids. Concentrations exceeding 0.1 mg/L are useful for controlling algae and plankton growth. Quantities ranging from 0.02 to 0.1 mg/L are toxic for some fish. Monitoring theses levels is important when using copper to treat fish disease.
|Method||Range (mg/L)||Steps (mg/L)||Approx. Number of Tests|
|Test Strips||0-3||0, 0.2,0.5 , 1, 3||25|