So I noticed that the dorsal fin and tail of my common pleco seem to be torn on the edges. I've seen other threads describing similar symptoms with other fish. I'm not sure if he's getting picked on or if it's how he moves against my decor, and I'm also not sure if it's something I should worry about. I attatched a pic so you could see. Fin rot would make sense; if it is, how could I treat it?
