i had a moorish idol once. i placed him in my tank with a unicorn tang, clown fish, coral beauty, and a ribbon eel. Along with a dinner plate sized anemone. everyone said they cannot be kept alive, but i tried anyway, and i was successfull. Very successful. i started out with a polyp coral costing around 35 dollars, then he eventually switched to frozen brine shrimp and i assure you they can eat. Unfortunately i had to get rid of him and ended up selling him for 150$ as a moorish idol that eats.