Bornean Eye-spot Silver Shark

About

Sometimes sold as the 'Bornean eye-spot silver shark', this medium-to-large cyprinid from Malaysia and Indonesia, Labiobarbus ocellatus, belongs to a group that was debated by taxonomists for nearly two centuries before the name Labiobarbus was confirmed as valid. In the wild it feeds opportunistically on detritus and insect larvae, which translates well to an omnivore diet in captivity. Identifying it is fairly straightforward once you know what to look for: a small, sharply defined black spot sits on the shoulder, a second marks the caudal peduncle, the body carries no longitudinal stripe pattern, and the caudal fin is a plain dusky tone without any bold margins. The dorsal fin is notably elongated, a feature shared across the genus. Behaviorally, this species is gregarious and genuinely does better in a group of at least six individuals. Fish kept singly or in small numbers tend to become skittish and washed out in color. Given the adult size it can reach, a spacious tank alongside other stream-dwelling species of similar stature is the right setup. It has not been bred in aquariums as far as anyone knows, so all available specimens are wild-caught or commercially sourced. An intermediate-level species, it rewards thoughtful stocking choices with relaxed, natural behavior.