General information on Naso Tang
The Naso Tang darkens with maturity. Naso Tangs that come from Hawaii are typically more vividly colored than those from other locations. When they are young Naso Tangs are typically brighter than other species. Naso Tang from Hawaii is dark gray, with the blue stripe running through the dorsal fin, as well as an orange stripe along the anterior fin. As it matures the body develops a reddish-brown hue, as well as the stripe that was formed in juvenile form, gets enhanced by a different color. The tail develops an lyre-like shape, with an orange vertical bar that runs toward the back. Two orange patches appear on the peduncle spines, close to the tail. The face is the most dramatic alteration. A thin, black face mask is formed between the mouth and the eyes. The mask is covered by bright yellow, and the lips take on an orange-reddish color. A large tank is required to allow plenty of space for swimming as well as places to hide in a lid that is tight that prevents the tang from jumping out to escape. It can be aggressive with other tangs but is calm with other fish in the tank.