HomeMarine aquarium fishAngelfish & butterflyfishBlackedged angelfish Blackedged angelfish (Genicanthus watanabei) Scientific name: Genicanthus watanabei Yasuda & Tominaga, 1970 The Blackedged angelfish (Genicanthus watanabei) is a marine fish of the family Pomacanthidae. Native range: Pacific Ocean, Taiwan to the Tuamoto Islands, north to the Ryukyu Islands, south to New Caledonia and the Austral Islands. BiologyDorsal spines (total): 15 - 16; Dorsal soft rays (total): 15-16; Anal spines: 3; Anal soft rays: 14 - 17. Males light blue with 8 black stripes on the lower 2/3 of the body (the posterior end of the uppermost yellow, the lowermost stripes extending the adjacent anal fin); females light blue with a vertical black bar above the eye and spots on the forehead; both sexes with a broad submarginal band on the dorsal and anal fins; females with broad submarginal band on the caudal-fin lobes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGenicanthus watanabeiFamilyPomacanthidae (Angelfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range21–81 m (69–266 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 21 - 81 mClimateTropicalDistributionPacific Ocean: Taiwan to the Tuamoto Islands, north to the Ryukyu Islands, south to New Caledonia and the Austral Islands.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 nematopteraSpotbreast angelfishGenicanthus melanospilosCocos-Keeling angelfishCentropyge coliniAfrican butterflyfishChaetodon dolosusZanzibar butterflyfishChaetodon zanzibarensisCortez angelfishPomacanthus zonipectusSee 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