HomeMarine aquarium fishTangs & surgeonfishPalette surgeonfish Palette surgeonfish (Paracanthurus hepatus) Scientific name: Paracanthurus hepatus Linnaeus, 1766 The Palette surgeonfish (Paracanthurus hepatus) is a marine fish of the family Acanthuridae. In the aquarium it needs water at 24–26°C (75–79°F). Palette surgeonfish care at a glanceTemperature24–26°C (75–79°F) BiologyDorsal spines (total): 9; Dorsal soft rays (total): 19-20; Anal spines: 3; Anal soft rays: 18 - 19. Bright blue, yellow and black in color.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParacanthurus hepatusFamilyAcanthuridae (Surgeonfishes, tangs, unicornfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length31.0Depth range2–40 m (7–131 ft)EnvironmentMarine; reef-associated; depth range 2 - 40 m, usually 10 - 40 mClimateTropicalDistributionIndo-Pacific: East Africa, including the Mascarene Islands to Kiribati, north to southern Japan, south to the southern Great Barrier Reef, New Caledonia, and Samoa.Conservation status (IUCN)Not EvaluatedThreat to humansVenomousUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tangs & surgeonfishTomini surgeonfishCtenochaetus tominiensisYellow tangZebrasoma flavescensSpotted surgeonfishCtenochaetus strigosusWhitemargin unicornfishNaso annulatusStriped-fin surgeonfishCtenochaetus marginatusHumpback unicornfishNaso brachycentronSee all tangs & surgeonfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026