Powder Blue Tangs are most coveted for their light powder blue color that dominates most of their body. Their face is a darker blue to black color with a vibrate yellow dorsal fin that extends from just behind the eye all the way to the tail fin. The underside of their body is accented with white markings below their mouth, anal fin and tailfin.
Powder Blue Tangs reach a fairly large size of 10 inches and require a good sized aquarium (90 gallons or larger) to provide them adequate swimming room. Powder Blue Tangs are excellent algae eaters and will spend much of their time grazing the live rock in the aquarium for algae. This species is aggressive towards other Tang species in the aquarium environment, much more so than most other tang species. To keep this species with other Tang species it is best to have a large aquarium with plenty of live rock, and introduce them together as juveniles if possible. Powder Blue Tangs make excellent addtions to most reef aquariums, as they are peaceful with other tankmates, with the exception of other tangs, and keep excess algae to a minimum. This species is somewhat suseptable to parasitic outbreaks, thus the use of a UV sterilizer and a quality diet of marine algae and seaweed are recommended to keep the Powder Blue Tang healthy and disease free.
Powder Blue Tangs require a lot of marine algae and seaweed in their diet for them to be healthy and maintain a proper immune system. While they will also consume meaty flake and frozen foods, the majority of their diet should come from algae and herbivore preparations. Vegetable matter, dried seaweed and other herbivore preparations will strengthen their immune system and also help reduce their overall aggression towards other tankmates.