The cardinal tetra is one of the most well-known aquarium fish. They're the world's most-in-demand Amazonian ornamental fish, accounting for almost 80% of the total fish export from Amazonas, a state ...

Tetras are one of the most popular and diverse types of freshwater aquarium fish. With more than 150 unique types of tetra fish of varying colors, shapes, and sizes, they make a great addition to any ...