actually the fish looked pretty fat and healthy! I don't shut off my return pump for feeding, so he was getting his daily dose of flake down there. But yeah, talk about a fishy gauntlet, there are powerheads all over...strong ones! I have no idea how long he was down there, but I haven't seen him for somewhere between 2 and 3 months!!!! Anyways, he went back in the tank this morning....and I haven't seen him since....uh oh.