One of my big koi seems to have split his mouth. I'm not sure how. It looks like someone caught him with a fishing hook and them let him go. Poor guy. It appears that the scale next to the his mouth (which appears to be one big 'shell'/scale has split and is lifting. Its been this way for a few weeks (and maybe before, I have been on vacation). He is eating fine and swimming fine. At first I thought the scale would fall off and a new one would grow, but that has not happened.
Has anyone seen this before. I don't think there is anything I can do.
Has anyone seen this before. I don't think there is anything I can do.