We have had our Foxface for almody 4 yrs now, and we feed him a blend of Herbivore and Carnivore diets and he loves them both (he also gets a little bit of Nori for a snack and he tears it up!)...make sure he gets enough vegitation and he will do great. They seem to make pretty good tankmates because they mind their own business, but I have never kept one with a Yellow tang. Also, be careful, they are venomous.