Offer it a large variety of quality foods. Meaty stuff to include; mysis shrimp, chopped mussel, plankton, finely chopped clam, Marine Cuisine, Emerald Entree, blood worms. Pellets are good as is occassional flake food. Give it regular offerings of sponge based foods. Hikari makes one (mega marine angel). Also give it greens a few times a week. Nori should work fine. Soak the food in supplements like selcon or zoe. My majestic eats everything and has from day one. A healthy fish that settles in well should have a good appetite.