While they resemble the neon tetra, the cardinal tetras have a higher proportion of red along their abdomen and brighter coloration. They live near the surface of rivers and are herbivores that feed on things like insects and seaweed.
- Scientific Name
- Paracheirodon axelrodi
- Classification
- Order: Characiformes, Family: Characidae
- Habitat
- Orinoco basin, Rio Negro basin
