Blind Cave Tetra Fish
Blind Cave Tetra Fish
Blind Cave Tetras are a relatively new tetra to the mainstream aquarium keepers. As there name would indicate, the Blind Cave Tetras have no eyes. They are born with eyes as fry, but the eyes degenerate and are reabsorbed back into the body at a few weeks old. There is a form that has eyes, although you do not generally see this version on the market.
These cave tetras are also completely devoid of pigmentation. They are pink, but will get an iridescent sheen to them as they get older.
The Blind Cave Tetra lives in deep caves in the wild. They range from Texas to Mexico, with the sighted version from Mexico to Panama. There is no need for eye sight in the pitch black caves, so they have evolved to adapt to these conditions.
Scientific Name : Astyanax jordani
Common Names : Blind Cave Tetra, Mexican Tetra
Care Level : Easy
Size : 3.5 to 4 inches (~ 9 cm)
pH : 6.0 to 7.5
Temperature : 68 - 77 °F (20-25 °C)
Lifespan : 3 to 5 years, possibly longer
Origin / Habitat : Texas, USA and Mexico
Temperament / Behavior : Fairly peaceful, keep them in schools of 5 or more. May nip at tank mates.
Breeding : Egg layer.
Aquarium Size : Minimum of 20 gallon for just a school of 5
Blind Cave Tetra Tank Mates : Virtually anything that won't eat them or has relatively the same water parameter requirements
Diet / Fish Food : Omnivore, will accept flakes, granules, pellets, frozen foods and live foods.
Tank Region : Middle of the aquarium
Gender : No distinguishing external differences between the sexes. The females when full of eggs are wider when looked at from above
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Please watch: "Guppy - How to Identify Male and Female Guppies - guppy fry"
https://www.youtube.com/watch?v=S-OI9JmXo8I
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