alanmin4304 Posted June 13, 2011 Report Share Posted June 13, 2011 If you are doing regular water changes it would be OK to do a 90% water change if you get rid of the chlorine and chloramines and the temperature is about the same. The chemistry of the water should not be a lot different if the water changes are regular. I have done that many times. Quote Link to comment Share on other sites More sharing options...
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