The Salifert Freshwater Chlorine + Chloramine (Chl) Profi Test accurately detects chlorine/chloramine levels when testing aquarium water parameters. Chloramine is a distinctive water disinfectant; it binds with ammonia to form a more stable compound and resists degradation in water. This chemical is necessary for public health and safety, but it can be hazardous to fish and aquatic life. A dechlorinator must be used to eliminate chlorine from the water, but usually ammonia will remain as a byproduct if simple dechlorinators like sodium thiosulfate are used. The test kit is easy to use; add 2ml of water and 4 drops of the CHL reagent to the vial and swirl gently for 10 seconds. Allow the mixture to stand for 1 minute then compare the color to the chart results for an accurate reading. With up to 60 tests, the Salifert Freshwater Chlorine + Chloramine Profi Test is a reliable tool for monitoring aquarium