HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesRedfin cardinalfish Redfin cardinalfish (Apogon rhodopterus) Scientific name: Apogon rhodopterus Bleeker, 1852 The Redfin cardinalfish (Apogon rhodopterus) is a marine fish of the family Apogonidae. Native range: Western Central Pacific, Singapore to Indonesia and Papua New Guinea. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Easily confused with A. trimaculatus but lacks opercle spot.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameApogon rhodopterusFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Common length7.0Depth range3–35 m (10–115 ft)EnvironmentMarine; reef-associated; depth range 3 - 35 mClimateTropicalDistributionWestern Central Pacific: Singapore to Indonesia and Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026