Ornamental Fish Production and Management

5.1.3 Chlorine

Ornamental fish culturists in cities often have water quality problem as the tap water used by them contains chlorine beyond permissible level. The growth and survival of any sensitive fish are affected by chlorinated tap waters. Chlorine content as low as 0.1.ppm itself is toxic to fishes. The chlorine content of such waters can be dechlorinated by heating the water.. Alternatively water with chlorine will have to be kept over night where the chlorine escapes and the water becomes usable.