yeah ive noticed this too. i have sand right now, and some fish created a bald spot in the middle. everytime a fish swims over it, theyll stop and stare down at the bald spot, looking at their reflection.ErikFromNJ;3116173;3116173 said:For some reason I think my fish are unhappy with a bare bottom. They'll constantly swim with there mouth dragging on the bottom of the tank. I'm assuming its from them seeing there reflection.
most fish will get used to BB after a few days though