Dwarf Puffer: Red Eye sockets/ridges

[Osteomata]

I checked some fish disease sites, but didn't find anything I could say for sure matched his symptom: One of my dwarf puffers has significant redness around the eyes, most noticable on the top and bottom. It looks like he was punched in the eye socket. I cant tell if its bulging, dwarf puffers have bulging eyes in a normal state. No other symptoms: he is active, eats, swims, etc. Only significant recent change to the tank was the addition of an otto and light dosing of flourish excel. Any ideas? I can try to get a picture of it later.

[insomniac]

Mine fight like dogs occasionally, though they seem to just get each others fins and hang on. Maybe it was nipped in the eye? You might try a water change and then some Melafix? It seems to help heal up wounds and nipped fins.