At this point is it best to just let it do what its going to do? He still swims around but not as much. Still eats but not a ton. Then again if im sick or hurt I dont want to move much or eat much either. I wish I could get a pic but with the tank set up he has lits of places to hide. Or he wont sit still in the open long.Hard to say. Could be infection from inside working it’s way out.