Coloredtail Astyanax
NameColoredtail Astyanax
Scientific NameAstyanax bimaculatus
Common NamesColoredtail Astyanax, Two-spot Astyanax, Yellowfin Astyanax, Yellow-tailed Astyanax
FamilyCharacidae
OriginSouth America
Temperamentsemi-aggressive
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)30
Max Size (Inches)6
Water TypeFreshwater
Temperature Range (°F)72-82
pH Range6.0-7.5
Compatible SpeciesLarger Tetras, Larger Barbs, Medium-sized Cichlids, Plecos, Larger Loaches
Description
The Coloredtail Astyanax, often identified as Astyanax bimaculatus, is a robust and active characin native to various river basins across South America. It features a silvery body, a prominent lateral stripe, and distinct yellow to reddish coloration on its caudal fin, often with a dark spot at the caudal peduncle. This semi-aggressive omnivore can grow quite large for a tetra, requiring a spacious tank and careful tankmate selection.
