I have an 20 gallon tank that used to be used to house a created gecko and I would like to use it for an auto top off reservoir. I once heard that once a reptile is in a tank that said tank cannot be used to house fish. Does anyone know if this is true and would there be ill effects on my tank if I used it just for my ato.
I have cleaned it really well with vinegar and let it soak/water test for a few days as well.
I have cleaned it really well with vinegar and let it soak/water test for a few days as well.


