HomeMarine aquarium fishGobies, blennies & dottybacksBlue devil Blue devil (Paraplesiops meleagris) Scientific name: Paraplesiops meleagris Peters, 1869 The Blue devil (Paraplesiops meleagris) is a marine fish of the family Plesiopidae. In the aquarium it needs water at 18–22°C (64–72°F). Native range: Eastern Indian Ocean, Western Australia and South Australia. Blue devil care at a glanceTemperature18–22°C (64–72°F) BiologyAdults occur in the vicinity of rocky reefs and caves, in comparatively shallow water. Eggs are guarded by the male parent. Flesh is quite palatable.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParaplesiops meleagrisFamilyPlesiopidae (Roundheads)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length33.0EnvironmentMarine; reef-associated, usually 15 - 25 mClimateTemperateDistributionEastern Indian Ocean: Western Australia and South Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More gobies, blennies & dottybacksYellowhead jawfishOpistognathus aurifronsFire gobyNemateleotris magnificaYellow prawn-gobyCryptocentrus cinctusPersian blennyEcsenius midasYellow devilfishAssessor flavissimusEastern blue devilParaplesiops bleekeriSee all gobies, blennies & dottybacks SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026