I have local tidal pool inverts in a 40g with a fluval 304 (or something like it). I don't have any airstones. Do you do something to break up the water surface to add more O2 or anything like that? I have a fluval edge (aqua clear above tank filter I was thinking of popping on for a little additional filtration and to aerate the water by breaking up the surface.
Any thoughts?
Any thoughts?