The Shark Catfish, more accurately known as the Columbian Shark Catfish, is a sleek, fast-swimming species admired for its shark-like silhouette and active schooling behavior. Its constant motion and silvery coloration make it an eye-catching addition to large, open aquariums designed for active fish. Columbian Shark Catfish have a streamlined, torpedo-shaped body with a metallic silver base color contrasted by a dark dorsal fin, forked tail, and black edging on the fins. They possess long barbels around the mouth, typical of catfish, which are used to sense food. Adults commonly reach 12–14 inches, with some individuals growing larger in spacious systems. Their size and speed mean they quickly outgrow smaller aquariums.