This beautiful fish is royal blue, with a black palette pattern on the side and a yellow tail. Of the thousands of fish available to the trade, this is one of the most popular of them all! It is widely distributed throughout the Central, Southern and Western Pacific, and like all fish collected from many different locations, quality varies from one collection location to another. Beware of cheap specimens. It is shy, especially when first introduced to the aquarium, and should be provided with coral, live rock, or other suitable shelter sites. This tang will lie on is side (often startling those unaware of it's behavior) if it cannot find a suitable hiding place, or when first introduced into the aquarium. This species is usually more docile than many other Surgeonfishes, and gets along great in a peaceful community or reef tank. Recommended Tank size: Requires a 20 gallon or larger aquarium with a number of hiding places and plenty of room to swim.To keep multiple specimens, introduce the entire lot at once into the marine system. Food and diet: In nature it feeds almost entirely on brown macroalgae and should be offered a wide a variety of foods including plenty of algae. Although Tangs will eat meaty foods along with the other fish in the aquarium, it is important that they are offered plenty of seaweed and algae. These are the foods that will strengthen their immune system, reduce aggression and improve their overall health. Offer dried seaweed tied to a rock or use a veggie clip, and feed at least 3 times per week. Sea Veggies, Seaweed Salad and Ocean Nutrition are all ideal products and are very easy to use. Reef Compatability: Good reef fish Level of Care: Easy Approximate Purchase Size: Tiny: 1/2" to 3/4"; Small: 1" to 2"; Medium: 2" to 3"; Large: 3" to 5" ;XLarge: 6-1/2"