HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesSlendertail cardinalfish Slendertail cardinalfish (Apogon leptocaulus) Scientific name: Apogon leptocaulus Gilbert, 1972 The Slendertail cardinalfish (Apogon leptocaulus) is a marine fish of the family Apogonidae. Native range: Western Atlantic, southeastern Florida in USA to Belize and islands of southern Caribbean. Species factsScientific nameApogon leptocaulusFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.0Depth range20–30 m (66–98 ft)EnvironmentMarine; reef-associated; depth range 20 - 30 mClimateTropicalDistributionWestern Atlantic: southeastern Florida in USA to Belize and islands of southern Caribbean.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