He also seems to have a bit of swelling around the head but hard to tell. He does not have a big mouth or signs of any disease I can find. He is about 4-5". Feeding bug bites but also flakes recently to try and entice him. It's as though he doesn't even see the food (nothing wrong with his eyes). I can't get antibiotics so offering it free to anyone who may be able to help. He was alone in a large tank and now he shares a 32g with two small angels and 10 cardinal tetras. Any advice appreciated.
I keep Angelfish and I usually find if they stop eating you have an emergency. The only thing I can suggest is that if you have any garlic or garlic liquid of any type you add to your flakes to entice it or with the pellets . I usually try to rotate the foods I use. Also try not to feed too much at one time.
Hope your guy starts eating . I also suggest that you take a look at your water parameters . A small water change may benefit the whole tank. Hope all improves. Good luck.