right now i just have a 46g with a maroon clown, damsel, fox face, and the korean. i plan to get a 180 within a few weeks. i checked all the lvls and they were all normal. he does seem to be swimming around alot lately and more curious today then he did yesterday. yesterday he floated at the top of the tank sideways but today he is swimming around. i think he will be ok givin time.