HomeMarine aquarium fishAngelfish & butterflyfishJapanese butterflyfish Japanese butterflyfish (Chaetodon nippon) Scientific name: Chaetodon nippon Steindachner & D?derlein, 1883 The Japanese butterflyfish (Chaetodon nippon) is a marine fish of the family Chaetodontidae. Native range: Western Pacific, Japan and Korea to the Philippines. BiologyDorsal spines (total): 12 - 13; Dorsal soft rays (total): 18-20; Anal spines: 3; Anal soft rays: 15 - 16Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaetodon nipponFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Pacific: Japan and Korea to the Philippines.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 angelfish & butterflyfishPajama cardinalfishSphaeramia nematopteraHawaiian gold-barred butterflyfishRoa excelsaArabian butterflyfishChaetodon melapterusIndian golden-barred butterflyfishRoa jayakariGardner's butterflyfishChaetodon gardineriLord Howe Island butterflyfishAmphichaetodon howensisSee all angelfish & butterflyfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026