I have one young convict that I believe is a male in a 20 gallon tank. I was thinking of adding a pair of small cichlids in with him. I was thinking Rams but I don't know how long they will last in there. Is this a good idea? Any suggestions on fish that I can add. The convict is in a tank with a few Gouramis right now and he is doing fine. I know I will have problems later so the Gouramis will be transfered to one of my other tanks soon but I would like to replace them if I can. What small cichlids would be aggressive enough to hold there own against one convict?