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Expected evaporation per day for 125 gallon?

3K views 4 replies 3 participants last post by  onefish2fish 
#1 ·
Hello,

What amount of evaporation can be expected for a 125 gallon tank, per day?

Thanks!
-nomel
 
#2 ·
I lose about a gallon a day from my 150 gallon under normal conditions (75 degrees in the house). If I run a dehumidifier, I lose more. If it's been raining, I lose less. It is all relative to what's going on in the atmosphere of your home.

I also lost the same amount from my 46 (and that was after I took the top off, I lost nothing with the top on...). It takes a few weeks to figure out what the amount is, but sooner or later you get a feel for what it loses.
 
#4 ·
Completely open top and open top sump. And evaporation is a good thing. It helps maintain a good temperature for the tank. I check every day when I get home and usually add a gallon. During the winter months it's usually more because of the air temp being lower than the tank's temp. I just add more water. Usually I add my calcium and dkh when topping off, to dilute those supplements.
 
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