Will Billy Posted January 17, 2021 Share Posted January 17, 2021 (edited) I cant remember where i seen it, but i read somewhere somebody was recommending using only cold tap for aquarium water and to not use hot tap where water has been through your water heater. Is there any validity to this? Or is this some made up pseudo science? Edited January 17, 2021 by Will Billy Link to comment Share on other sites More sharing options...
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