With an 80 gallon tank, a small community should be fine. There might be too many convicts though. You could probably successfully do just a single pair, but all the more power to ya!Keep us posted on what happens, I just got 2 female and 4 male adult convicts to breed feeders for my tank and was wondering if I can keep them in an 80 gallon community or have to set up something for just the cons.