大鳞四须魮

Overview

Yellow pectoral, pelvic, and anal fins help recognize the robust Hypsibarbus vernayi. Similar H. wetmorei has orange to reddish fins in those positions. Yellow-finned fish sold under that name or a lemon-fin label are therefore likely to be vernayi.

Distribution & habitat

The range spans mainland Southeast Asia from Mekong tributaries in Yunnan through Laos, Thailand, Cambodia, and Vietnam to the northern Malay Peninsula. Vegetated river margins with flowing water are favored, rather than reservoirs or other still impoundments.

Seasonal migration is known, but it remains unclear whether entire populations converge on shared spawning sites or smaller groups move over shorter distances.

Aquarium setup

Provide a large aquarium with extensive unobstructed swimming room. Rounded rocks, gravel, and wood can create a river display without sacrificing space. Sensitivity to accumulating organic waste is considered likely, so maintain clean water, established filtration, and abundant oxygen.

Diet & feeding

Wild fish have been recorded eating shrimp and snails, suggesting feeding near the bed. Aquarium recommendations include varied live or frozen foods with quality preparations and plentiful vegetable matter.

Behaviour & compatibility

It is generally unaggressive when room is adequate, but crowding can alter that behavior. Small fish may be eaten, and persistent activity can unsettle slow or hesitant partners. Keep six or more and select companions able to share its space and feeding pace.

Sexual dimorphism

Mature females may become deeper-bodied and grow larger than males.

Breeding

Feeding and spawning are recorded from some Yunnan tributaries. Aquarium reproduction has not been reported.