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Blind Cave Fish
Blind Cave Fish

Blind Cave Fish

(Astyanax mexicanus)


Also known as the Mexican tetra, the blind cave fish is a small with pinkish-white colouring due to a lack of pigmentation. Males of this species have tiny hooks on their anal fins, thought to be for breeding purposes. These fish have comparatively large teeth for their size.

Habitat & Distribution

Found in lakes, rivers and pools within warm dark caves in eastern and central Mexico.


Primarily a carnivorous species, these small fish will feed on small invertebrates, crustaceans, snails, worms and smaller fish. They have also been reported eating plant matter, algae and scavenging on caracasses that may get washed into caves.

Conservation Status:

Least concern.