This guy is an absolute nut-job. He had gotten to the point where he was terrorizing the other small cichlids in the 30 so I moved him to the 90 with the bigger guys. I was a bit worried about how he would do, but believe it or not, he has taken over the tank! I've seen him on numerous occasions just go up the the large Cichlasoma hedriki that's in there and bit him repeatedly!