Except you would have to get new homes for the angels and congos to do that. You skipped over that part.Ohh haha thanks a lot, that means it should be fine right? To keep them forever? I think I might just grow out the discus and steal a spot in the petshop's 4 ft to make it a display tank for discus... just to split them, maybe sell them. I read somewhere that pros would get 10-12 wait till they grow up and keep 2 males and the rest of the females.
Beyond overcrowding, the temperature needs differences for the three species cancel your optimistic reading...