Guyana Astyanax
NameGuyana Astyanax
Scientific NameAstyanax bimaculatus
Common NamesTwo-spot Astyanax, Silver Tetra, Two-spot Tetra, Guyana Astyanax
FamilyCharacidae
OriginSouth America, Guyana, Amazon Basin, Orinoco Basin
Temperamentcommunity
Dietomnivore
Care Levelbeginner
Minimum Tank Size (Gallons)30
Max Size (Inches)5
Water TypeFreshwater
Temperature Range (°F)72-80
pH Range6.0-7.5
Compatible SpeciesOther medium-sized tetras, Rasboras, Corydoras catfish, Plecos, Dwarf Cichlids (e.g., Kribensis), Rainbowfish
Description
The Guyana Astyanax is a robust and adaptable freshwater fish from the Characidae family, characterized by its silvery body and often two distinct dark spots, one behind the gill plate and another at the caudal fin base. These active omnivores thrive in schools and are generally peaceful, though they may nip fins if not kept in appropriate numbers or with suitable tankmates.
