Fish Species

Blind Cave Fish

Blind Cave Fish - Description

The Blind Cave Fish is also known as the Mexican Tetra, Blind Cave Tetra and Blind Tetra. It doesn't have any eyes or pigmentation, a very unusual looking fish!

The Blind Cave fish is a very popular choice for the freshwater aquarium as it is hardy and relatively easy to keep.

They use their lateral line sensory organs to find their way around, this sense organ is very sensitive to water pressure.

Popular Name: Blind Cave Fish
Species: Astyanax fasciatus mexicanus

Profile of the Blind Cave Fish

This Profile contains interesting facts and information about the Blind Cave Fish species.

  • Size: Up to 12cm

  • Fish Tank conditions: 20 -25 Degrees. PH 6.0-7.5

  • Diet / Feeding: Dried, Flake or Frozen food

  • Temperament: Peaceful Fish

  • Habitat: Caves - Rocky river beds, Rivers and Deep Streams

  • Range: Nearctic ecozone including Mexico

Scientific Classification of the Blind Cave Fish

Definition: 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 Fish - Mexican Tetra - Blind Tetra - Blind Cave Tetra

  • Kingdom: Animalia

  • Phylum: Chordata

  • Class: Actinopterygii

  • Order: Characiformes

  • Family: Characidae


Aquarium Fish Index

Facts about Fish Species - Blind Cave Fish

The colours, shapes and sizes of individual fishes varies enormously - you really need excellent quality pictures or photographs to assist in the identification process.


A combination of the number of fins and their characteristics, color, scale counts, general features, maximum length and distribution are used during a species identification process.

The species detailed on this website are Tropical, Saltwater, Aquarium , Marine , Pet , Pond, Clown, Koi,
Beta (Betta), Gold Fish (Goldfish), Star, Angel, Puffer, Discus, Piranha, Rainbow, Parrot, Crustaceans, Sea Anemones and Coral.

For more information and pictures of the Blind Cave Fish visit the
Full Fish Species Website

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