How aggressive are Convicts if they are kept singly or are not breeding? I was planning to get some HRPs for my tank, but I would have to get them off of Aquabid or somewhere, but right now a LFS has some good looking Convicts in. I think female Convicts are quite nice looking, but I don't want a pair taking over my tank. If I got a female or two would they be too aggressive? They would be in a 90g growout tank for 6-12 months before going in a 300+g tank I'm building. Most the fish are 1-3 inches, with a few fish in the 4-6 inch range. The milder species in the tank are Severum, flier cichlid, spilurus, Thorichthys sp., and the bigger fish are Syns, some sunfish, Crassi Oscar and a (so far) well behaved female Carpintus.