Aquarium Forum http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en What percentage of water do you change with a water change<script language='JavaScript' type='text/javascript'> <!-- --> </script> http://forum.aqua-fish.net/?topic=what-percentage-of-water-do-you-change-with-a-water-change#1 When you do a water change what % of water do you change? Thanks irwin id 2013-07-21