Paracheirodon axelrodi images

Cardinal tetra (Paracheirodon axelrodi) at the Dallas World Aquarium.

This fish species is endemic to the Rio Negro River in Brazil, the second-largest tributary of the Amazon.

A cardinal tetra (Paracheirodon axelrodi) at the Singapore Zoo’s River Safari area.

A cardinal tetra (Paracheirodon axelrodi) at the Singapore Zoo’s River Safari area.

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National Geographic Photographer and Speaker