HomeFreshwater aquarium fishOther freshwater fishPennant coralfish Pennant coralfish (Heniochus acuminatus) Scientific name: Heniochus acuminatus Linnaeus, 1758 The Pennant coralfish (Heniochus acuminatus) is a brackish-water fish of the family Chaetodontidae. Native range: Indo-Pacific, East Africa and Persian Gulf to the Society Islands, north to southern Japan, south to Lord Howe Island. Throughout Micronesia. BiologyDorsal spines (total): 11 - 12; Dorsal soft rays (total): 22-27; Anal spines: 3; Anal soft rays: 17 - 19. Distinguished from the very similar H. diphreutes by the longer snout, rounder shape and longer and more angular anal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHeniochus acuminatusFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Common length15.0Depth range2–75 m (7–246 ft)EnvironmentMarine; brackish; reef-associated; depth range 2 - 75 m, usually 15 - 75 mClimateTropicalDistributionIndo-Pacific: East Africa and Persian Gulf to the Society Islands, north to southern Japan, south to Lord Howe Island. Throughout Micronesia.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More other freshwater fishLined soleAchirus lineatusPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusSouth American lungfishLepidosiren paradoxaFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSee 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