I think it looks ok actually but Hard to tell with the angle. If looking straight at it the area directly above his eyes should be convex. If it’s concave I would be concerned . See how the band is sort of concave above his eyes? I would not expect any reef no matter how healthy to sustain a cbb very long imo. They eat so much when they are healthy there’s just no way. Pecking is a good sign but try everything possible to get it eating.
Edit just saw the top shot. I still think its got some fat stored but try everything available it might eat
Edit just saw the top shot. I still think its got some fat stored but try everything available it might eat