OK. About 6 months ago, I bought 6 what I would categorize as small clown loaches (under 2 inches) to my 180G discus and clown loach tank. The tank had 6 discus and 6 much larger existing clown loaches (around 4-5 inches and much bulkier) in the tank. Well I guess I should have kept them in the 45G quarantine tank I had them in, because 3 of them seem to be growing ok but the other 3 not as much. I guess I was dying to have a shoal of CLs and rushed it a bit. They're eating but they're also getting pushed around by the other loaches quite a bit and not getting their fair share. So should I separate them and grow them out in the 45G for a while? It definitely wouldn't be fun chasing down clown loaches in a 180G tank though. 