How long?

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Fire Eel
MFK Member
Aug 19, 2008
1,397
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Cleveland Ohio
I have a tank sitting now with water in it to make sure it doesnt leak. Ive had the water in it for two days now without any leaks at all. How long should I let it sit to be sure?
 
just my two cents, i believe your fine. if there is no water or moisture coming from any where you should be fine. i'm still pretty new at this stuff, i filled my old tank waited for 12 hours and it was fine so put gravel filter heater and cycled it and still is perfect
 
When I buy new tanks I put them on a clean dry towel... fill them to the top being very careful not to spill any water on the towel... wait a few hours (overnight usually)... then inspect the seams, carefully drain the tank and review the towel for wet spots...

If it doesn't leak overnight then the tank doesn't leak... if the seams are weak and might give way, then it might take a day, a week, a month or a year for this to happen. At some point you have to decide it's strong enough to try in the house.

Pay close attention to the condition of the silicone before and after you fill it. If there is even the slightest change then monitor it longer or don't use it inside. But if there are no changes in the silicone after sitting full overnight, I'd trust them.
 
Yabbadoo;2576523; said:
If it doesn't leak immediately (30mins) it's fine.....
Water will find it's way thru any gaps very quickly.....

my only concern with trusting that is if the tank sat dry for a while and the silicone "dry rotted" to a degree the pressure of the water may slowly push a pane of glass out of place over the course of a couple hours and then the tank will leak...

Chances of this happening are slim, but chances of a tank not holding water is thin. But this whole process is a matter of removing risk.

But the vast majority of the time I would say Yabbadoo is right
 
If its been sitting there with water for two days without any leaks then you should be good to start cycling.
 
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