The Aimara Wolf Fish, also called the Arapaima Wolf Fish or Giant Wolf Fish, is an incredible large and predatory fish from South America, known for its aggressive behavior and gapingly large size. The aimara can grow incredibly large, up to 4 feet in captivity, and thus requires an exceptionally large tank to contain it in optimal conditions. This fish's torpedo-shaped body is streamlined and optimized for providing bursts of speed as it's on the hunt for food. As a top predatory, the aimara is highly carnivorous, preferring a protein-rich diet.

Aimaras may not be the best tankmates, especially when placed in a smaller tank. When given plentiful space, aimaras can be placed with other large, robust fish that are able to tolerate its aggressive and territorial nature, including arapaimas, bichirs, pacus, and large catfish.