I kept convicts, jack dempseys, a native blue gill, and a jaguar cichlid with my two oscars. Also at one point I did have a red devil in there as well but by the name of this thread I'm sure you don't care to know that. On the jaguar, this setup was a 180 gallon tank, I wouldn't recommend mixing these two in anything smaller. I've heard that a school of piraña will work as well.
Sent from my iPhone using
MonsterAquariaNetwork app