There is a beautiful 5-6" heros notatus in my LFS and he has been there for a while. He seems to be a bit bullied by the other severums in the tank and is quite docile. The only thing is he seems to have a deformed/disfigured dorsal fin. It looks like it has got chunks taken out of it and originally I thought that it was from aggression from the other fish but several weeks later he still has exactly the same problem and it looks like a permanent disfigurement. Has anyone seen this sort of thing before? Do you think his dorsal fin damage will grow back? I am popping down there next weekend and will take a picture but cannot do that until then.