I had one for about a year in a 90g. It was pretty cool, always had zoa's, sponge, and whatever eles it could find to stick on itself. Never really "hurt" anything. It would however steal shrimp off some of the corals that I would spot feed and walk on coral without regard for them (always my green bubble that did not like it). Other than that it was pretty sweet till it eventually withered away, not sure if they are good long term in a tank though. Only really saw it after lights out.
|