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The Vlaming's Unicornfish, also known as the Vlamingii Tang, or Bignose Unicornfish, has a brown to purple body color when an adult. In the juvenile, The color graduates from lighter, dorsally, to darker, ventrally. It has vertical markings on the body and blue highlights. The dorsal fin, anal fin, tail, and face are all sparingly detailed in a brilliant bright blue.

A 180 gallon or larger aquarium is necessary to provide plenty of swimming room and places to hide. The aquarium should have a tight-fitting lid to prevent the fish from jumping out to escape. It is aggressive towards other Tangs, but peaceful with other fish, and will not harm sessile invertebrates within the reef aquarium.

The diet of the Vlaming's Unicornfish should consist of dried brown marine algae, Spirulina, and small shrimp such as brine or mysid.