HomeFreshwater aquarium fishGouramis & bettasBetta albimarginata Betta albimarginata Scientific name: Betta albimarginata Kottelat & Ng, 1994 Betta albimarginata is a freshwater fish of the family Osphronemidae that grows to about 5 cm (2 in). It is easy to keep and peaceful, is best kept in a species tank and needs a tank of at least 20 L (5 US gal), water at 22–26°C (72–79°F) and a pH of 6.0–7.5. Native range: Asia, Known only from the Sebuku basin, Kalimantan Timur, Borneo, Indonesia. Betta albimarginata care at a glanceCare levelEasyTemperamentPeacefulCommunity tankNot suitableAdult size5 cm (2 in)Minimum tank20 L (5 US gal)Temperature22–26°C (72–79°F)pH6.0–7.5Hardness2–9 dGH (36–161 ppm)DietOmnivore. Accepts flakes, frozen foods, live foods and vegetables. BiologyDorsal spines (total): 3 - 4; Dorsal soft rays (total): 6-8; Anal spines: 10; Anal soft rays: 12 - 13Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBetta albimarginataFamilyOsphronemidae (Gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length2.8EnvironmentFreshwater; benthopelagic; depth range 0 - ? mClimateTropicalDistributionAsia: known only from the Sebuku basin, Kalimantan Timur, Borneo, Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gouramis & bettasBetta coccinaCroaking gouramiTrichopsis vittataSiamese fighting fishBetta splendensRoundtail paradisefishMacropodus opercularisGiant gouramiOsphronemus goramyPygmy gouramiTrichopsis pumilaSee all gouramis & bettas 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