Regal tang

The regal tang (Paracanthurus hepatus) is a species of surgeonfish found in the Indo-Pacific region. It is the only member of the genus, Paracanthurus. It has a bright blue body, yellow tail, and a black palette design. The regal tang is one of the most popular and common saltwater aquarium fish. The regal tang has numerous other common names such as palette surgeonfish, palette tang, royal blue tang, regal blue tang, hippo tang, blue hippo tang, flagtail surgeonfish, Pacific regal blue tang, blue tang, and blue surgeonfish, which the latter two would cause confusion to the Atlantic species.