My tank made a crash noise and I turned around to see two rocks completely where they do not belong and my peacock cichlid nursing a wound the size of a nickel, holding his left fin over it, he lost a few scales. Looks like one of my fish got pissed and struck him and the spat that occured caused so much movement that a couple of my rocks were rustled from their resting places. Such violence, I hope the poor guy will be ok! Didn't see who the culprit was but I'm not too worried about it. Any thoughts? Should I be concerned?
