HomeFreshwater aquarium fishOther freshwater fishMonrovia doctorfish Monrovia doctorfish (Acanthurus monroviae) Scientific name: Acanthurus monroviae Steindachner, 1876 The Monrovia doctorfish (Acanthurus monroviae) is a brackish-water fish of the family Acanthuridae. In the aquarium it needs water at 20–25°C (68–77°F). Native range: Eastern Atlantic, southern Morocco to Angola, including Cape Verde and S?o Tom?. Monrovia doctorfish care at a glanceTemperature20–25°C (68–77°F) BiologyDorsal spines (total): 9; Dorsal soft rays (total): 24-26; Anal spines: 6; Anal soft rays: 24 - 26. Caudal peduncle spine surrounded by a bright orange-yellow spot.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcanthurus monroviaeFamilyAcanthuridae (Surgeonfishes, tangs, unicornfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Common length38.0Depth range5–200 m (16–656 ft)EnvironmentMarine; brackish; demersal; depth range 5 - 200 m, usually 5 - 40 mClimateTropicalDistributionEastern Atlantic: southern Morocco to Angola, including Cape Verde and S?o Tom?.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More other freshwater fishFinescale tigerfishDatnioides microlepisShort-tailed pipefishMicrophis brachyurus brachyurusPumpkinseedLepomis gibbosusFreshwater garfishXenentodon cancilaLined soleAchirus lineatusSouth American lungfishLepidosiren paradoxaSee all other freshwater fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026