I have a 6-7 inch male red devil/midas alone in a 55gallon. I recently got a 8-9 inch jack dempsey (unsure of sex) from a roomate that moved out. The red devil has grown by himself for many months now and is not used to sharing. I tried putting in the dempsey because he is larger than the devil. I thought the dempsey would be able to hold his own due to the size advantage. I was really really wrong. I had to throw the dempsey into a crappy 20 gallon so it can heal. So my question to you guys is, should I try co-habing these two beasts or should I just give up and get rid of one. I was thinking of taking out the giant pirate ship that is currently in the tank and adding all new decorations. Also, possibly adding another fish and trying a controlled overcrowding (although it could go bad). I need help!!!!!!!!!!!!!!!!!!!!!!!!
