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- Dec 29, 2017
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Yes the mouth can go back inside when it inflated again. I have seen it many times before.
What I meant about the water change is to the small cup. Not your entire tank. Unless it’s regular scheduled maintenance on the tank, do a water test. If out of whack levels then do a WC. But it sounds like you have a 25 gallon Nano tank?
What I meant about the water change is to the small cup. Not your entire tank. Unless it’s regular scheduled maintenance on the tank, do a water test. If out of whack levels then do a WC. But it sounds like you have a 25 gallon Nano tank?

