HomeFreshwater aquarium fishGuppies & livebearersFoureyes Foureyes (Anableps microlepis) Scientific name: Anableps microlepis M?ller & Troschel, 1844 The Foureyes (Anableps microlepis) is a freshwater fish of the family Anablepidae. Native range: Central and South America, Trinidad and Venezuela to the Amazon delta in Brazil. BiologyGregarious but occurs in more restricted schools of about a dozen individuals. May occur singly or as a couple. Mainly found in freshwater and brackish estuaries near river mouths. Occasionally marketed in the aquarium trade. Used in eye research because of its divided cornea which projects two images on the retina.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAnableps microlepisFamilyAnablepidae (Four-eyed fishes, onesided livebearers & white-eye)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length32.0Common length15.0EnvironmentFreshwater; brackish; demersal; non-migratoryClimateTropicalDistributionCentral and South America: Trinidad and Venezuela to the Amazon delta in Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheries; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More guppies & livebearersPoecilia wingeiBold characodonCharacodon audaxBluetail goodeaAtaeniobius toweriButterfly splitfinAmeca splendensMollyPoecilia sphenopsSouthern platyfishXiphophorus maculatusSee all guppies & livebearers SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026