So we have some weird bread of brown fish that's an "algae eater", he's keeping the tank nice and clean, but evidently there's not enough algae b/c he ate a good section of a red-cap oranda's tail! I caught him sucking on the side of the oranda near his eye yesterday and figured it was time to teach the evil monster a lesson. What do you suggest? 
(In all seriousness, I just moved the damaged Oranda to a different tank so he can at least grow old and die in peace. he's been swimming really slow for the last 5 months, so he must be coming to the end of his life span)
(In all seriousness, I just moved the damaged Oranda to a different tank so he can at least grow old and die in peace. he's been swimming really slow for the last 5 months, so he must be coming to the end of his life span)