guppys-n-platys:

Some Astyanax jordani we saw while being in France. Super interesting fish!

July ‘18

These are a variant of Mexican tetra that were originally discovered in a cave. They’re born with eyes, but if raised in the dark, their eyes scale over and become useless. They actually make good aquarium fish! Just not with other fish, as they bite anything they run into in case it’s food and they’re a bit too bitey. They also move a bit oddly because they’re completely blind, but they don’t seem to realize.