HomeFreshwater aquarium fishBarbs, danios & rasborasGlowlight rasbora Glowlight rasbora (Trigonostigma hengeli) Scientific name: Trigonostigma hengeli Meinken, 1956 The Glowlight rasbora (Trigonostigma hengeli) is a freshwater fish of the family Cyprinidae that grows to about 3 cm (1.2 in). It is peaceful, suits community aquariums and needs a tank of at least 55 L (15 US gal), water at 23–28°C (73–82°F) and a pH of 5.5–7.0. Native range: Asia, A blackwater species native to Indonesian islands of Sumatra and Borneo. Glowlight rasbora care at a glanceTemperamentPeacefulCommunity tankGoodAdult size3 cm (1.2 in)Minimum tank55 L (15 US gal)Temperature23–28°C (73–82°F)pH5.5–7.0DietOmnivore. Accepts frozen foods and live foods. Species factsScientific nameTrigonostigma hengeliFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length3.0EnvironmentFreshwater;; pH range: 6.0 - 6.0; dH range: 5 - 12 benthopelagicClimateTropicalDistributionAsia: Sumatra and Borneo, Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More barbs, danios & rasborasTwospot rasboraRasbora elegansLeast rasboraBoraras urophthalmoidesGoldfinned barbPuntius sachsiiCoppernose barbRaiamas christyiLong snouted barbPuntius dorsalisHarlequin rasboraTrigonostigma heteromorphaSee all barbs, danios & rasboras 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