Question about half-black angel

[musipilot]

A non-computer friend asked me to post this:
His half black angel appears healthy, he's had him about a week, but he doesn't seem to eat anything he's feeding the tank. (Formula One frozen, krill, marine flake, red algae). The fish acts normally, hunts for food, and spits out everything offered. Any suggestions on how or what to feed this guy?

 

[predator]

Try a open brain or maybe a cup coral, LOL. Just kiddin'. Try mysis or you might have to either give it time or look to some live food and ween em/. Godd luck.