A few years back I kept a breeding pair of Oscars, Male Nic, Orange Pike Cichlid, Crenicichla sp. Xingu I, severum, firemouth, breeding convicts, a few random yellow labs and a Copadichromis azureus male in my 180G. Very little aggression aside from the lovebirds mating rituals. I haven't really 'mixed' since then, but sometimes I think about it as I know the colors of some of the old worlders would get my girlfriend more into the hobby. Especially seeing some of the local hobbiest selling tons of yellow lab fry. Think they would make neat dithers in my CA tanks, but then again I'd hate to see my RD/midas go to town on them 
Once I get back into more peaceful new worlders I may reconsider mixing again...
Once I get back into more peaceful new worlders I may reconsider mixing again...

