Bicyclebill Posted April 10, 2011 Share Posted April 10, 2011 Can anyone tell me a good reason to leave my tank wide open? I've always used at least a partial cover. Link to comment Share on other sites More sharing options...
Mitchell Posted April 10, 2011 Share Posted April 10, 2011 Better gas exchange. All of my tanks have no covers. Sent from my DROIDX using Tapatalk Link to comment Share on other sites More sharing options...
coralreefer Posted April 10, 2011 Share Posted April 10, 2011 1) Cooling via evaporation 2) Less light filtration 3) Easy way to punish jumping fish DrMerle Link to comment Share on other sites More sharing options...
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