HomeFreshwater aquarium fishGouramis & bettasPseudosphromenus dayi Pseudosphromenus dayi Scientific name: Pseudosphromenus dayi K?hler, 1908 Pseudosphromenus dayi is a freshwater fish of the family Osphronemidae that grows to about 55 cm (22 in). It is easy to keep and aggressive, suits community aquariums and needs a tank of at least 75 L (20 US gal), water at 25–28°C (77–82°F) and a pH of 6.5–7.5. Native range: Asia, Kerala, India. Pseudosphromenus dayi care at a glanceCare levelEasyTemperamentAggressiveCommunity tankGoodAdult size55 cm (22 in)Minimum tank75 L (20 US gal)Temperature25–28°C (77–82°F)pH6.5–7.5Hardness4–15 dGH (71–268 ppm)DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyOccurs in lentic environment. Found in ditches and swamps. Eggs shrink to the bottom and were then collected by one or both parents and were embedded among the foam bubbles in the nest.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudosphromenus dayiFamilyOsphronemidae (Gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.5EnvironmentFreshwater; brackish;; pH range: 6.5 - 7.5; dH range: 4 - 15 pelagic; non-migratoryClimateTropicalDistributionAsia: Kerala, India.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: potentialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gouramis & bettasGiant gouramiOsphronemus goramyRoundtail paradisefishMacropodus opercularisSiamese fighting fishBetta splendensCroaking gouramiTrichopsis vittataLuciocephalus auraBetta rajaSee 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