Originally Posted by Stanlalee
you arent boiling anything at 82deg. I had my tank reaching 85deg with no problems. Fans do cause a bit more evaporation but that is partially whats taking the heat away. not enough to make it an issue in your size tank.
This is very true, evaporation is actually a good thing if you want to cool down your tank, so don't try and stop it. I lose 1.5 gallons a day (I think 2 now that it's summer). Get a top-off if you don't want to worry about refilling every day.