HomeFreshwater aquarium fishGouramis & bettasToba betta Toba betta (Betta rubra) Scientific name: Betta rubra Perugia, 1893 The Toba betta (Betta rubra) is a freshwater fish of the family Osphronemidae. Native range: Asia, Indonesia. BiologyDorsal spines: 0 - 2; Dorsal soft rays: 7-8; Anal spines: 2 - 3; Anal soft rays: 24 - 26; Vertebrae: 28 - 29. Body with 5-7 irregular dark vertical bars; opercle with a pair of vertical parallel reddish bars; presence of broad chin-bar, merging with anterior part of second postorbital stripe, forming a triangular dark mark below eye; anal-fin rays 27-29; lateral scales 28 1/2-30; total length 131.6-142.3% SL; caudal peduncle depth 13.1-16.3% SL; body depth at dorsal-fin origin 23.2-27.1% SL; pelvic fin length 28.1-38.4% SL; dorsal-fin base length 9.6-12.5% SL; interorbital width 6.3-9.9% SL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBetta rubraFamilyOsphronemidae (Gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia: Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gouramis & bettasSpotted bettaBetta pictaCrescent bettaBetta imbellisSlim bettaBetta bellicaPygmy gouramiTrichopsis pumilaChocolate gouramiSphaerichthys osphromenoidesBadisBadis badisSee all gouramis & bettas SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026