The Long-whiskered Catfish is a freshwater and brackish-water catfish native to Sri Lanka and other coastal regions of South and Southeast Asia. In Sri Lanka, it is commonly found in lowland rivers, lagoons, estuaries, marshes, and slow-moving freshwater habitats, especially in areas with muddy bottoms and dense aquatic vegetation. It is a hardy species capable of tolerating changes in water conditions, including slightly saline environments near coastal areas. This nocturnal bottom-dwelling catfish uses its long barbels to search for food in dark or muddy waters. It feeds on small fish, aquatic insects, crustaceans, worms, and other small organisms found on the riverbed. During the day, it often hides among vegetation, roots, or submerged structures and becomes more active at night. The Long-whiskered Catfish is an important native species in Sri Lanka’s wetland ecosystems and contributes to the balance of freshwater and coastal aquatic food webs.