Unfortunately my bi color blenny (got him Nov 2) has a literal HOLE in his forehead, and abrasions on his face. Took him back to the reef store, and decided not to swap him because I love his grumpy face. They confirmed, yes, there is a small chunk of flesh missing from in between his eyes. They put a blue antiseptic (I think) in the water I brought him in, and also gave me some extra with these instructions: ATTEMPT to catch the blenny, and then with a qtip, dab some extra antiseptic on it. I purchased seachem’s Kanaplex and Focus powder to add to the spiralina brine shrimp I feed him. He soaked in the antiseptic for 30mins before I return him to the tank. I’m worried it’s HITH but it seems kinda unlikely since he’s still fairly active and eating. However, it is quite literally… a hole in his noggin. Perhaps, he was injured by another fish in the store? Cause looking back at photos, he had the hole when I purchased him. Should I go as far as to quarantine him? Any other suggestions? The second clip is to show that the white of the hole/abrasion/idfk does not go away with color change. Thanks for bearing with a new hobbyist like myself

