I've got a ~6" palmas living with clown loaches, uaru's, a dat, a ctenopoma and a clown plec. He doesnt seem phased by any of the other fish.
I'd like to get rid of the uaru's and add another 1-2 bichir's, but the only ones at the lfs are all around 3-4" and quite a bit thiner than mine. Is there likely to be any aggression problems because of the size difference and with one fish already being established in the tank??
[sorry for the hijack!]