Blind Cave Fish
Image: Chris Bentley (cc-by-nc)
NameBlind Cave Fish
Scientific NameAstyanax mexicanus
Common NamesMexican Tetra, Blind Cave Tetra, Mexican Blind Cave Fish, Blind Cave Fish
FamilyCharacidae
OriginNorth America, Mexico, Southern United States
Temperamentcommunity
Dietomnivore
Care Levelbeginner
Minimum Tank Size (Gallons)20
Max Size (Inches)4.5
Water TypeFreshwater
Temperature Range (°F)68-78
pH Range6.0-7.5
Compatible SpeciesOther Tetras, Rasboras, Danios, Corydoras Catfish, Small Gouramis, Platies, Mollies
Description
The Mexican Tetra (Astyanax mexicanus) is a fascinating freshwater fish known for both its sighted surface-dwelling form and its blind, cave-dwelling form. The sighted form, as seen in the image, is silvery with a streamlined body, while the cave form lacks eyes and pigmentation. These hardy omnivores are popular in aquariums due to their adaptability and active nature.
