To remove clorine from the water put one drop of hypo into the water. One drop will clear one gallon of clorine from the water. I do not know what the effect it has on fish over a period of a long time. I have used it and there were no ill effects. Of course, I don't use it all the time; only when there is an emergency. Br. Paul
-- Wright Huntley -- 760 872-3995 -- Rt. 001 Box K36, Bishop CA 93514
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