So I moved my juvy chocolate cichlid into the 75 with the green severum. I thought sev's were supposed to be mellow? He/she is BOSSY. The only fish in the tank that it ignores are the bottom-dwellers. The ctenopomes get their share chasing, though. I think I may get rid of one each of the leopards and kingsleyaes, and move a leopard to my 38, so the 75 will have more space as the fish get bigger. Any suggestions to chill out the severum? I love the sev and chocolate both quite a bit, and I can't put up any more tanks....