I went to my lfs yesterday and saw they had a ghost about 9 inches long. I was thinking of putting him in a 55g. I was wondering what kinds of fish would be compatible with him. I need to move a red tail shark, two clown loaches and a drawf gourami to my 55 due to size/fighting. They also had one about 4.5 inches, and told me it would take several years to get as big as the other?