HomeFreshwater aquarium fishOddballs & predatorsOrnate bichir Ornate bichir (Polypterus ornatipinnis) Scientific name: Polypterus ornatipinnis Boulenger, 1902 Photo: http://www.tropco.co.uk/polypterus-ornatipinnis-10cm-12cm-p-3563.html The Ornate bichir (Polypterus ornatipinnis) is a freshwater fish of the family Polypteridae that grows to about 61 cm (24 in). It is moderate to keep and aggressive and needs a tank of at least 210 L (55 US gal), water at 25–28°C (77–82°F) and a pH of 6.0–8.0. Native range: Africa, Congo River basin, Lake Rukwa drainage, and Lake Tanganyika. Ornate bichir care at a glanceCare levelModerateTemperamentAggressiveAdult size61 cm (24 in)Minimum tank210 L (55 US gal)Temperature25–28°C (77–82°F)pH6.0–8.0Hardness5–19 dGH (89–339 ppm)DietCarnivore. Accepts freeze-dried foods, frozen foods and live foods. BiologyDorsal spines: 9; 11; Anal spines: 1415. Subcylindrical body. Upper and lower jaw of equal length. Number of dorsal finlets: 9-11. Dorsal fin origin well behind pectoral fin. Ganoid scales: 58-65 lateral line scales, 38-44 scales around body, 22-27 predorsal scales. Dorsal side grey-brown colored, marbled with clear whitish spots, the belly is white to yellowish. Head finely reticulated. Fins with white spots alternating with dark spots, forming a continuous bar.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePolypterus ornatipinnisFamilyPolypteridae (Bichirs)OrderPolypteriformes (Bichirs)ClassActinopterygii (Ray-finned fishes)Maximum length60.0EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Congo River basin; Lake Rukwa drainage and Lake Tanganyika.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: public aquariumsResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fec=200-300) More oddballs & predatorsBarred bichirPolypterus delheziBlack arawanaOsteoglossum ferreiraiBronze featherbackNotopterus notopterusSouth American freshwater stingrayPotamotrygon motoroArawanaOsteoglossum bicirrhosumIndochina featherbackChitala blanciSee 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