Ok so here are a few pics its kind of hard to see cause he wont sit still for me to take pics but anyway so I moved the red devil out of his 55 that he was in by himself into a 35 because i needed the 55 urgently for my tigerish because I didn't want to mess around with the tiger cause he was expensive. Anyway I did this a few weeks ago i try to keep on top of water changes at least once a week. The filter for my 35 is kind of crappy so i have been planning on getting him a better filter until my 1000 gallon indoor pond is done which he will go in along with some of my other fish however I have not gotten around to that yet. I feed him hikari sticks which have a high nutritional value to them. He has never been a big eater he only eats on occasion and doesn't eat nearly as much as my others (oscars, arowana, gator gar). The thing that makes me question whether this would be hole in the head disease is why are the holes in a pattern and symmetrically almost like its natural?