HomeMarine aquarium fishClownfish & damselfishBlue chromis Blue chromis (Chromis cyanea) Scientific name: Chromis cyanea Poey, 1860 The Blue chromis (Chromis cyanea) is a marine fish of the family Pomacentridae. Native range: Western Atlantic, Bermuda, southern Florida (USA), and the Caribbean Sea. Including the Bahamas, Gulf of Mexico and Antilles. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 12; Anal spines: 2; Anal soft rays: 12. Body bright blue, scarcely paler below, with black stripe. Black margin on spinous dorsal fin, upper and lower lobes of caudal fin and front of anal fin; no black spot at pectoral base.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChromis cyaneaFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range3–60 m (10–197 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 3 - 60 m, usually 10 - 20 mClimateTropicalDistributionWestern Atlantic: Bermuda, southern Florida (USA), and the Caribbean Sea. Including the Bahamas, Gulf of Mexico and Antilles.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More clownfish & damselfishSunshinefishChromis insolataPurple reeffishChromis scottiLongfin damselfishStegastes diencaeusBeaugregoryStegastes leucostictusBicolor damselfishStegastes partitusThreespot damselfishStegastes planifronsSee all clownfish & damselfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026