The Blue Tang boasts a vibrant electric blue body dressed with bold black markings. In fact, the black that begins at the eyes, traces the dorsal line down to the tail, and circles back above the pectoral fin to create a unique shape reminiscent of a painter's palette. This marking is why the Blue Tang is also known as the Palette Surgeonfish. It is also called the Pacific Blue Tang, and Hepatus or Regal Tang. Regardless of common name, Paracanthurus hepatus fish is equal parts beauty and peacefulness that suits almost any large community marine aquarium.