HomeMarine aquarium fishTangs & surgeonfishSpotted tang Spotted tang (Zebrasoma gemmatum) Scientific name: Zebrasoma gemmatum Valenciennes, 1835 The Spotted tang (Zebrasoma gemmatum) is a marine fish of the family Acanthuridae. In the aquarium it needs water at 24–28°C (75–82°F). Native range: Western Indian Ocean, Mozambique and South Africa; also Madagascar, Reunion, and Mauritius. Spotted tang care at a glanceTemperature24–28°C (75–82°F) BiologyDorsal spines (total): 4; Dorsal soft rays (total): 27-28; Anal spines: 3; Anal soft rays: 24 - 25Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameZebrasoma gemmatumFamilyAcanthuridae (Surgeonfishes, tangs, unicornfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length22.0Depth range10–61 m (33–200 ft)EnvironmentMarine; reef-associated; depth range 10 - 61 m, usually 25 - ? mClimateSubtropicalDistributionWestern Indian Ocean: Mozambique and South Africa; also Madagascar, Reunion, and Mauritius.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tangs & surgeonfishOneknife unicornfishNaso thynnoidesScalpel sawtailPrionurus scalprumOcean surgeonAcanthurus bahianusDoctorfishAcanthurus chirurgusBlue tang surgeonfishAcanthurus coeruleusBignose unicornfishNaso vlamingiiSee 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