Expected evaporation per day for 125 gallon? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 07-28-2009, 02:57 PM Thread Starter
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Expected evaporation per day for 125 gallon?

Hello,

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

Thanks!
-nomel
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post #2 of 5 Old 07-28-2009, 03:15 PM
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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.



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My 30 Gallon Long Marine Tank
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post #3 of 5 Old 07-28-2009, 07:52 PM Thread Starter
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Wow, that's incredible. I didn't realize it was so much. Is this with a completely open top, or do have something to help catch moisture, or is it just inevitable?
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post #4 of 5 Old 07-28-2009, 09:02 PM
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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.



Nothing good happens fast in an Aquarium

My 30 Gallon Long Marine Tank
My son's 20 gallon FW Community
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post #5 of 5 Old 07-28-2009, 09:42 PM
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its going to depend on if you have a canopy, what size sump, if your using a fan to help cool the tank and to many variables.

i see the evaporation in my return chamber section of my sump which i have marked with a line that i replace with RO/DI as i see it below that line.
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