HomeMarine aquarium fishAngelfish & butterflyfishCrochet butterflyfish Crochet butterflyfish (Chaetodon guentheri) Scientific name: Chaetodon guentheri Ahl, 1923 The Crochet butterflyfish (Chaetodon guentheri) is a marine fish of the family Chaetodontidae. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 21-22; Anal spines: 3; Anal soft rays: 18. Pearly white with numerous small spots, some forming vertical patterns, and yellow to orange from dorsal fin to anal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaetodon guentheriFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Depth range5–40 m (16–131 ft)EnvironmentMarine; reef-associated; depth range 5 - 40 mClimateTropicalDistributionWestern Pacific: anti-equatorial, from southern Japan to Taiwan and the Ryukyu Islands and from Papua New Guinea and the Great Barrier Reef to Lord Howe Island and New South Wales. Recently reported from Tonga.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More angelfish & butterflyfishPajama cardinalfishSphaeramia nematopteraBlack butterflyfishChaetodon flavirostrisThreespot angelfishApolemichthys trimaculatusPhilippine butterflyfishChaetodon adiergastosBlacktail butterflyfishChaetodon austriacusKeyhole angelfishCentropyge tibicenSee 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