HomeFish encyclopediaRay-finned fishesCharacinsCharacinsMachaca Machaca (Brycon guatemalensis) Scientific name: Brycon guatemalensis Regan, 1908 The Machaca (Brycon guatemalensis) is a freshwater fish of the family Characidae. In the aquarium it needs water at 21–34°C (70–93°F). Native range: Central America, Atlantic slope from Grijalva River, Mexico to eastern Panama; in the Pacific slope, only in Choluteca River basin of Honduras. Machaca care at a glanceTemperature21–34°C (70–93°F) BiologyFound in lakes, rivers and streams between 0 and 600 m elevation. The young feed on terrestrial and aquatic insects, leaves, fruits and seeds but become mainly herbivorous when adult. Eggs are deposited in nests located in sand bottoms of streams.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBrycon guatemalensisFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length59.0Depth range0–600 m (0–1969 ft)EnvironmentFreshwater; benthopelagic; depth range 0 - 600 mClimateTropicalDistributionCentral America: Atlantic slope from Grijalva River, Mexico to eastern Panama; in the Pacific slope, only in Choluteca River basin of Honduras.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesGamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.35) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026