Astyanax mexicanus

Some pics of one of my Mexican Blind Cavefish or Blind Cave Tetra.

emeraldking said:

Some pics of one of my Mexican Blind Cavefish or Blind Cave Tetra.
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Wow thats pretty cool! How do they know where the food is?

connorlindeman said:

Wow thats pretty cool! How do they know where the food is?

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Most cave fish have developed their lateral line and sense of smell to replace their vision. They've lived in the dark for so long their eyes have de-evolved along with any pigment in the skin and scales.

Very cool fish also has a reputation of being hard to catch?

Wills

Wills said:

Most cave fish have developed their lateral line and sense of smell to replace their vision. They've lived in the dark for so long their eyes have de-evolved along with any pigment in the skin and scales.

Very cool fish also has a reputation of being hard to catch?

Wills

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Intersting. I would like to see a video of them eating.

Nice !!! Only it won't be able to read the advertisemens in the tank.

DoubleDutch said:

Nice !!! Only it won't be able to read the advertisemens in the tank.

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The Black & Decker workmate is used as a stand. I wasn't using it anymore for what is was meant for...

connorlindeman said:

Wow thats pretty cool! How do they know where the food is?

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Wills has already mentioned how it works. It's not just food but also other fish or obstacles that they sense with their lateral line.

Wills said:

Most cave fish have developed their lateral line and sense of smell to replace their vision. They've lived in the dark for so long their eyes have de-evolved along with any pigment in the skin and scales.

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There's also a variety that does have eyes and full eye sight. But that one lives in open waters. It also carries the same scientific name as the blind version.