Hi guys, I just ordered a Serrasalmus Rhombeus from somebody and he brought me Serrasalmus Medinai by mistake. When I first saw it I thought it was a juvinile Red belly so I told him to take it back because I do own a Rhombeus and it looks nothing like it but then I gave it a closer look and saw his robust shape towards the head but the red belly and cariba like characters through me out. Anyway I brought him home and put them in with my caribas. There are 9 male female carribs in there do you guys think its a good idea to keep him in there or should I put him in a tank of his own..thanks