Tetras are one of the most popular and diverse types of freshwater aquarium fish. With more than 150 unique types of tetra ...

Physical Characteristics of Diamond Tetra. Tetras are small, delightful fish that — in the wild — are always found in groups. ... Both males and females have silver bodies and purple fins.

One of the new species was discovered in an unusual and “very difficult” to access location near the Rio Purus, a tributary ...

The neon tetra is the most famous and plentiful of all of the tetra species found in the ornamental fish trade. Each month, approximately 2 million neon tetra are sold in the U.S. alone.

The Mexican tetra has evolved to live in a number of dark caves – and now we know that the fish in each cave use clicks to communicate in distinct ways By Richard Kemeny 14 April 2022 ...