I have currently, 2 tiger Oscars, 1jack Dempsey, 1 green terror, 1 red finned groumi, 1 spotted gar, 1 umbee, 2 plumb headed cichlids, 1 fire mouth cichlid, 1 red devil and a red tailed catfish ( small about 5-6") in a 200 gallon aquarium, there isn't any aggression going on that ive noticed and plan on building a way bigger aquarium with more swimming room as I know they all get larger, my red tail will eventually get a pond with my res and diamond back terrapins, but my question is are there any other species I can add, I like dovii, red terror cichlid and jaguar cichlids or any others that get a decent size and wont become lunch, so any recommendations