The Mexican tetra or Blind Cave Fish (Astyanax mexicanus) is a freshwater fish of the characin family (family Characidae) of order Characiformes.[1] [2] The type species of its genus, it is native to the Nearctic ecozone, originating in the lower Rio Grande and the Neueces and Pecos Rivers in Texas as well as the central and eastern parts of Mexico.

Growing to a maximum overall length of 12 cm (4.7 in), the Mexican tetra is of typical characin shape, with unremarkable, drab coloration. Its blind cave form, however, is notable for having no eyes and being albino, that is, completely devoid of pigmentation; it has a pinkish-white color to its body.

The Blind Cave Tetra is also known as the Mexican Tetra. They are a very unusual looking fish as they don't have any eyes or pigmentation! They are however a very popular choice for the freshwater aquarium as they are hardy and relatively easy to keep. The Blind Cave Tetra's use their lateral line sensory organs to find their way around, this sense organ is very sensitive to water pressure.

" Profile of the Blind Cave Tetra"This Profile contains interesting facts and information about the Blind Cave Tetra species.

Size:Up to 12cm
Fish Tank conditions: PH 6.0-7.5. 20 -25 Degrees.
Diet / Feeding: Dried, Flake or Frozen food
Temperament: Peaceful, Good Community Fish
Habitat: Caves - Rocky river beds, Rivers and Deep Streams

Range: Nearctic ecozone including Mexico


"Scientific Classification of the Blind Cave Tetra"

 Scientific classification, or biological classification, is how biologists group and categorize species of organisms with shared physical characteristics. Scientific classification belongs to the science of taxonomy.

Species: Astyanax fasciatus mexicanus
Popular Name: Blind Cave Tetra - Blind Tetra
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
 Family: Characidae