HomeFreshwater aquarium fishGouramis & bettasRocky kurper Rocky kurper (Sandelia bainsii) Scientific name: Sandelia bainsii Castelnau, 1861 The Rocky kurper (Sandelia bainsii) is a freshwater fish of the family Anabantidae. In the aquarium it needs water at 18–22°C (64–72°F). Native range: Africa, Kowie, Great Fish, Buffalo, Keiskamma and Nahoon River systems, southeast Cape, South Africa. Rocky kurper care at a glanceTemperature18–22°C (64–72°F) BiologyFound in rocky streams, favoring marginal habitats where the current is slow. Preys on insects, crabs and small fish. Is preyed upon by introduced predators such as bass and sharptooth catfish. Breeds in summer. Males guard the eggs and larvae which are found on the substrate. Upon hatching, larvae adhered permanently to the substrate at the nesting site.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSandelia bainsiiFamilyAnabantidae (Climbing gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length26.0EnvironmentFreshwater;; pH range: 6.8 - 8.0; dH range: 10 - 30 benthopelagicClimateSubtropicalDistributionAfrica: Kowie, Great Fish, Buffalo, Keiskamma and Nahoon River systems, southeast Cape, South Africa.Conservation status (IUCN)Endangered (EN) (B1ab(ii,iii)+2ab(ii,iii))Threat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=2) More gouramis & bettasOrnate ctenopomaMicroctenopoma ansorgiiSpotted ctenopomaCtenopoma acutirostreBadisBadis badisChocolate gouramiSphaerichthys osphromenoidesSlim bettaBetta bellicaCrescent bettaBetta imbellisSee 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