One other thing. CBB often get a viral infection that sorta looks like a wart when they are shipped. This will eventually go away as they de-stress in their new environment if they are feeding well. The other thing to look for when buying a CBB is any damage to their mouth or snout. This often occurs when they are shipped and if it occurs they are pretty much doomed. OK Larry, what did I miss? Instar (Larry) is the CBB master. Most of what I know came from him. He is the only person I have heard of that is able to keep a school of these guys in the same tank. I think he has 3 or 4 in his 125.