I have a 150 gallon tank which houses a Texas cichlid about 6in, a salvini cichlid about 4in, a black belt that my girlfriend begged me for that's about 3in, a jaguar cichlid that's about 5in, a african tiger pike that's probably 6in, and a peacock bass that is about 5in. Yes I know all these fish will get big and a bigger tank is in the works. Lately though I have been noticing that my peacock bass has torn (not sure what they're called) side fins. All of my other fish don't have a mark on them it's just the peacock bass that's torn up. There are not any white tufts on the fins or anything that looks like some kind of fungus but his fins look split and frayed. What do you think could be causing this? My african tiger pike is known to chase him around the tank but he never bites at him just chases him. What can I do to allow his fins to heal quickly?