I recently picked up this lungfish from a lfs sold as an “African lungfish” I’m assuming it’s a West African lungfish, Protopterus annectens. It is about 9-10 inches if I had to guess. I noticed it had an injury on its side. Any guesses of what it could be or how to treat it? I’ve done tons of research on these guys but this is my first so any and all advice would be greatly appreciated!!!