I was wondering if 2 aqua clear 300's one on each side is enough for a 90 gallon tank? Also how frequent, and how much of a water change is needed for a roughly 8-9" Dovii?
Should be enough, if you end up with dirty substrate try a power head close to the bottom...with that fish 2 50% per week WC should be ok.....then an 8 ft tank ,soon...lol
