HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsPopeye grenadier Popeye grenadier (Coryphaenoides cinereus) Scientific name: Coryphaenoides cinereus Gilbert, 1896 The Popeye grenadier (Coryphaenoides cinereus) is a marine fish of the family Macrouridae. In the aquarium it needs water at 0–4°C (32–39°F). Native range: North Pacific, northern Japan to Sea of Okhotsk, Bering Sea and south to Oregon, USA. Popeye grenadier care at a glanceTemperature0–4°C (32–39°F) BiologyFeeds mainly on pelagic forms. Too small for fresh consumption.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCoryphaenoides cinereusFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length66.0Common length44.1Depth range150–3500 m (492–11483 ft)EnvironmentMarine; bathydemersal; non-migratory; depth range 150 - 3500 m, usually 800 - 1200 mClimateDeep-waterDistributionNorth Pacific: northern Japan to Sea of Okhotsk, Bering Sea and south to Oregon, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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