HomeFreshwater aquarium fishTetras & characinsDarter characin Darter characin (Characidium fasciatum) Scientific name: Characidium fasciatum Reinhardt, 1867 The Darter characin (Characidium fasciatum) is a freshwater fish of the family Crenuchidae that grows to about 6.5 cm (2.6 in). It is easy to keep and semi-aggressive, suits community aquariums and needs a tank of at least 55 L (15 US gal), water at 18–24°C (64–75°F) and a pH of 5.6–7.5. Native range: South America, S?o Francisco and upper Paran? River basins in Brazil. Darter characin care at a glanceCare levelEasyTemperamentSemi-aggressiveCommunity tankExcellentAdult size6.5 cm (2.6 in)Minimum tank55 L (15 US gal)Temperature18–24°C (64–75°F)pH5.6–7.5Hardness2–25 dGH (36–446 ppm)DietOmnivore. Accepts flakes, freeze-dried foods and frozen foods. Species factsScientific nameCharacidium fasciatumFamilyCrenuchidae (South American darters)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length6.7EnvironmentFreshwater;; pH range: 5.6 - 7.5; dH range: ? - 25 benthopelagicClimateSubtropicalDistributionSouth America: S?o Francisco and upper Paran? River drainages in Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More tetras & characinsRedflank bloodfinAphyocharax rathbuniCochu's blue tetraBoehlkea fredcochuiRummy-nose tetraHemigrammus rhodostomusEmber tetraHyphessobrycon amandaeOrnate tetraHyphessobrycon bentosiYellow tetraHyphessobrycon bifasciatusSee all tetras & characins 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