HomeMarine aquarium fishAngelfish & butterflyfishMillet butterflyfish Millet butterflyfish (Chaetodon miliaris) Scientific name: Chaetodon miliaris Quoy & Gaimard, 1825 The Millet butterflyfish (Chaetodon miliaris) is a marine fish of the family Chaetodontidae. Native range: Eastern Central Pacific, Johnston Island and Hawaii. BiologyDorsal spines (total): 13 - 14; Dorsal soft rays (total): 20-23; Anal spines: 2 - 3; Anal soft rays: 17 - 20. Body is generally yellow or white with vertical rows of spots on the sides. A broad black bar runs vertically through eye from edge of sub opercle, and a black spot is on the caudal peduncle.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaetodon miliarisFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range0–250 m (0–820 ft)EnvironmentMarine; reef-associated; depth range 0 - 250 mClimateTropicalDistributionEastern Central Pacific: Johnston Island and Hawaii.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (K=1.13) More angelfish & butterflyfishPajama cardinalfishSphaeramia nematopteraFour-banded butterflyfishChaetodon hoefleriSunburst butterflyfishChaetodon kleiniiPearlscale angelfishCentropyge vrolikiiBicolor angelfishCentropyge bicolorLemonpeel angelfishCentropyge flavissimaSee 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