Thanks everyone. Yes thats a reflection of my camera. Its a new cam and I agree I gotta learn the settings. The tangs color is fine but he does have some bad HLLE scars on his face. Ive tried eveything to reverse it with no luck.Ive tried garlic,selcon,broccoli,nori,and a grounding probe. Nitates vary from low to zero. Everything else in the tank is great as far as corals,coraline,mini dusters spreading,snails breeding.