this is a copy from the Burgess Atlas:
Yellow Tang:
Like most tangs and surgeons I am easy to recognize because of my oval body shape and bold markings. I am yellow, very Yellow. I am generally described as a browser, I enjoy eating algae that I find and any vegetarian treats you may give me. Some of my favorite snacks include; spirulina, zucchini, broccoli, leaf lettuce, and dried seaweed. My new home will also need to have plenty of room to swim around. A 75-gallon tank or larger should be adequate. You should be aware that I have the ability to be a very angry fish. I don't enjoy living with other Zebrasoma species or tangs in general. It would be best if I were the only tang in the tank unless appropriate room is provided for a second. If you want to try to breed my species, I am all for it, but you may have some problems. First, it is quite hard to visibly tell the difference between male and female tangs. It is also very difficult to rear the fry because they remain in the planktonic stage for months. The planktonic youth are in constant danger from the filters unless you are prepared.
Hope that helps, sorry for the length