HomeMarine aquarium fishOther marine fishSpotted garden-eel Spotted garden-eel (Heteroconger hassi) Scientific name: Heteroconger hassi Klausewitz & Eibl-Eibesfeldt, 1959 The Spotted garden-eel (Heteroconger hassi) is a marine fish of the family Congridae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0; Vertebrae: 163 - 177. Variable but usually two large black spots are obvious; body diameter to about 14 mm. Anterior nostrils included in continuous free labial flange. Pectoral fins minute. Total vertebrae 163-177, anal origin below vertebra 59-66.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHeteroconger hassiFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range7–45 m (23–148 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 7 - 45 mClimateTropicalDistributionIndo-Pacific: Red Sea and East Africa to the Society Islands, north to the Ryukyu and the Ogasawara islands, south to northwestern Australia and New Caledonia; throughout Micronesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More other marine fishPacific cownose rayRhinoptera steindachneriPilotfishNaucrates ductorPaeony bulleyePriacanthus blochiiAfrican pompanoAlectis ciliarisCommon torpedoTorpedo torpedoPlate fishBothus lunatusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026