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Old 10/31/2020, 09:42 AM   #9
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Join Date: Jul 2010
Location: Austin, TX
Posts: 1,840
Originally Posted by dubmaneh View Post
No AC on. This is with heat on in the house.
My mistake, living in central Texas I always think in terms of AC, we don't really have much of a winter.
Evaporative cooling by air flow, even if the air is heated can cool a tank significantly. Warm dry air can hold a significant amount of moisture and the the loss of water through evaporation can have a surprising pronounced cooling effect.

"Our crystal clear aquaria come nowhere close to the nutrient loads that swirl around natural reefs" Charles Delbeek
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