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Characiformes (Characins) >
Crenuchidae (South American darters) > Crenuchinae
Etymology: Poecilocharax: Greek, poikilos = with a lot of colours + Greek, charax, -akos = a fish without identification (Ref. 45335).
Eponymy: Dr Stanley Howard Weitzman (1927–2017) was an American ichthyologist who was Research Scientist Emeritus, Division of Fishes, Department of Invertebrate Zoology, at the National Museum of Natural History, Smithsonian and a professor at George [...] (Ref. 128868), visit book page.
More on author: Géry.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 5.2 - 6.5; dH range: ? - 5. Tropical; 24°C - 28°C (Ref. 2059)
South America: upper Solimões, upper Negro, and upper Orinoco River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 137577)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Male takes care of young.
Buckup, P.A., 2003. Crenuchidae (South American darters). p. 87-95. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37059)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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