Blind Cave Tetra Tropical Fish Information

Astyanax jordani
Blind Cave Tetra
Behaviour Peaceful, active, shoaling, sometimes nippy
Typical size 7cm
Max size 10cm
Tank Area Middle, bottom
Min Tank Size 75cm
Min Number 3
Temp Min: 18℃ Max: 25℃
Feeding Flake, dried, frozen, live foods. Varied diet preffered
pH Range 6.5-8.5
Hardness s,m,h,vh
Blind Cave Tetra Astyanax jordani
  • Blind Cave Tetra Astyanax jordani - thumbnail
  • Close up - Blind Cave Tetra Astyanax jordani - thumbnail

Blind Cave Tetra (Astyanax jordani)

Blind Cave Tetra Tropical Fish Learn all about the Blind Cave Tetra's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Blind Cave Tetra is the right fish for your aquarium.

The Blind Cave Tetra is an interesting aquarium fish with a lively nature. Its most noticeable characteristic is that the fish possesses no eyes, scince it has evolved in caves with no light, it has no need for sight in its natural environment. Interestingly, the fry and young do have eyes, which then dissapear as the fish matures. Despite its lack of vision, the fish is extremely good at navigation and finding food with other senses, and is often better than other sight enabled fish. In the aquarium the fish are lively and active, constantly exploring their surroundings. Although non-aggressive, they do have a habit of nipping fins, so delicate or long finned fish are best avoided as tankmates. In some cases, this habit can cause lots of problems, so it is excluded from the Compatibility Checker. The fish have no special requirements and can be kept in most water conditions, including cooler water.

This fish is excluded from the Compatibility Checker as it is unsuitable for community aquariums or may require expert care.

Blind Cave Tetra Facts

Family Characidae (Characins) | Synonyms Anoptichthys jordani, Astyanax fasciatus mexicanus, Anoptichthys hubbsi, Anoptichthys antrobius | Other names Blind Cavefish | Origin North America; Mexico | Breeding Egg scatterer, spawns relatively easy in cooler water | Natural Water Conditions pH 6-8, hard to very hard | Natural Habitat Underground caves | Sexing Males are more slender



Blind Cave Tetra Help and Advice

If you have a question about keeping Blind Cave Tetra's then please use our Blind Cave Tetra help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.




Check Tankmates for the Blind Cave Tetra fish species

Create a test community that includes the Blind Cave Tetra fish species and other types you'd like to introduce - Assess tank size suitability based on filter type and volume, possible negative interactions and warnings.

Please check your water type for compatibility with your fish, which can be found on the Blind Cave Tetra information box.
Tank Details
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