The most distinctive feature of the X-Ray Tetra is the translucent layer of skin that covers it’s small body, allowing the fish’s backbone to be clearly seen.
Fascinating facts about some of the world’s most amazing animals. From Aardvarks to Zebras our A-Z of the animal world is guaranteed to inspire. If your favourite animal’s not yet included, please let us know. Check out the Top 3 most loved animals! »