A large South American freshwater fish, known for its distinctive coloration, is a popular, though demanding, species in the aquarium trade. This fish, native to the Amazon, Orinoco, and Essequibo river basins, is characterized by a dark back and bright red-orange caudal fin. Its rapid growth and eventual size present significant challenges for hobbyists.
The species plays a vital role within its native ecosystem as a significant predator, influencing the populations of smaller fish and invertebrates. Historically, indigenous communities have utilized this large fish as a food source. Its increasing popularity as an ornamental fish has, however, raised concerns regarding sustainable harvesting practices and potential impacts on wild populations, necessitating responsible ownership and trade practices.