We have 4 red devils {all very similiar to the one pictured} and they are beautiful.. i have tried to sex them in the past but still not sure who is who..since at various times all seem to get a huge hump.. sometimes their humps become enormous and then seem to go back to normal. The only way to sex them would be by venting..and really breeding is not a concern right now... We have everyone of them in a separate tank by them self and two in a shared tank with screen divider.. My question is ..is it possible to get a large enough tank that they can be in together or will the fighting between them exist no matter what size tank their in? I just thought it would be awesome to do a tank of these 4 red devils.. but if their lives would be in jeopardy i would leave well enough alone or if i had to go to an extreme size tank it would be out of my reach right now as room is a factor.. i can add a 125 or 190..but after that size would not be able to get into the room..weak!!!!
