HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsSixbar grouper Sixbar grouper (Epinephelus sexfasciatus) Scientific name: Epinephelus sexfasciatus Valenciennes, 1828 The Sixbar grouper (Epinephelus sexfasciatus) is a marine fish of the family Serranidae. Native range: Western Central Pacific, known only from tropical waters, from Thailand and the Philippines to northern Australia. BiologyCommon on silty sand or mud bottoms. Its preference for soft-bottom habitats may account for its restricted distribution and absence at oceanic islands. Feeds on small fishes and crustaceans.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEpinephelus sexfasciatusFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range10–80 m (33–262 ft)EnvironmentMarine; reef-associated; depth range 10 - 80 mClimateTropicalDistributionWestern Central Pacific: known only from tropical waters, from Thailand and the Philippines to northern Australia.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.16) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026