Bagarius vegrandis, the dwarf goonch, is a species of sisorid catfish native to the Mekong River drainages in Laos, Cambodia and Thailand,Vietnam and the Chao Phraya river basins in Thailand. This species reaches a maximum length of
Bagarius vegrandis is the only member of the genus even marginally suitable for home aquaria. It requires cool, fast-flowing water, and eats bloodworms, shrimp and live or dead fish. Reports exist of very anti-social behaviour by these fish in captivity.