HomeMarine aquarium fishBasslets, cardinalfish & hawkfishBarred soapfish Barred soapfish (Diploprion bifasciatum) Scientific name: Diploprion bifasciatum Cuvier, 1828 The Barred soapfish (Diploprion bifasciatum) is a marine fish of the family Serranidae. Native range: Indo-West Pacific, Maldives and India to Papua New Guinea, north to southern Japan, south to Lord Howe Island. BiologyMainly in coastal habitats in semi-silty conditions; also found near caves and crevices in rocky and coral reefs from a few meters to at least 100 m. A predator that feeds on surprisingly large prey, swallowed whole through its expandable jaws. Feeds mainly on fishes. Secretes the skin toxin grammistin under stress.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiploprion bifasciatumFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Depth range1–100 m (3–328 ft)EnvironmentMarine; reef-associated; depth range 1 - 100 m, usually 5 - 50 mClimateTropicalDistributionIndo-West Pacific: Maldives and India to Papua New Guinea, north to southern Japan, south to Lord Howe Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More basslets, cardinalfish & hawkfishBanggai cardinal fishPterapogon kauderniSpotted hawkfishCirrhitichthys aprinusRandall's fairy bassletPseudanthias randalliSea goldiePseudanthias squamipinnisRed-cheeked fairy bassletPseudanthias huchtiiBlue-and-yellow grouperEpinephelus flavocaeruleusSee all basslets, cardinalfish & hawkfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026