The Pacú is a freshwater fish native to the rivers of South America, particularly in the Amazon Basin. It belongs to the family Serrasalmidae, which also includes the well-known piranha. Pacús are known for their deep, laterally compressed bodies and can grow up to 3 feet long. They primarily feed on fruits, seeds, and aquatic plants, making them herbivorous. Pacús are popular in both commercial and recreational fishing due to their tasty, firm flesh. They are often farmed in aquaculture settings and are sought after in local markets. Their unique appearance and behavior make them a fascinating species for aquarium enthusiasts as well.