I have a problem. I got a 100 gallon fisk tank set up with 2 red devils. they where fighting so i made a tank didvider out of egg crate. I made some bigger holes in the divider for smaller fish to swim thru but keep the devil to there own side. It worked great because i had some eels and convicts that enjoyed the pleasure of both sides. the 2 devils would try and grab each others mouths thru the holes but nothing serious ever came out of it. everything was working great until i came home the other day and saw that the smaller red devil was miising his top lip.
it got completely ripped off. my fish are smaller 7 inches and bigger 8 inches. will his mouth heal up and regrow or will i have a gimp fish? the other question is that even with his lip missing, he still trying to fight with the other devil.
what should i do to control the aggression?