I have a regal blue tang. She eats anything and everything. I feed a bit of seaweed in the morning and she eats everything I feed the rest of the fish. I have a variety of mysis shrimp, brine shrimp, squid, krill, and plankton that I feed and she eats all that. And I give her a little spinach and some romaine lettuce when I cook dinner sometimes. She eats the spinach off my finger.