HomeFreshwater aquarium fishOddballs & predatorsParachanna obscura Parachanna obscura Scientific name: Parachanna obscura G?nther, 1861 Parachanna obscura is a freshwater fish of the family Channidae that grows to about 50 cm (20 in). It is moderate to keep and aggressive and needs a tank of at least 210 L (55 US gal), water at 22–28°C (72–82°F) and a pH of 6.5–7.5. Native range: West Africa, Nile, Senegal to the Chad system up to the Congo system. Parachanna obscura care at a glanceCare levelModerateTemperamentAggressiveAdult size50 cm (20 in)Minimum tank210 L (55 US gal)Temperature22–28°C (72–82°F)pH6.5–7.5DietCarnivore. Accepts frozen foods and live foods. BiologyInhabits marginal vegetation and floodplains. Feeds on insects and small fish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParachanna obscuraFamilyChannidae (Snakeheads)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length50.0EnvironmentFreshwater; demersal; potamodromousClimateTropicalDistributionAfrica: Nile, Senegal to the Chad system up to the Congo system.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More oddballs & predatorsLesser spiny eelMacrognathus aculeatusChanna aurantimaculataPirapatingaPiaractus brachypomusDario darioAlfaro cultratusIndonesian snakeheadChanna micropeltesSee all oddballs & predators SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026