The Stinging Catfish is a freshwater catfish native to Sri Lanka and other parts of South Asia. In Sri Lanka, it is found in a variety of freshwater environments including marshes, ponds, irrigation canals, rice fields, streams, and slow-moving areas of rivers. It prefers muddy habitats with plenty of hiding places and is highly adapted to survive in waters with low oxygen levels due to its specialized air-breathing organs. This nocturnal, bottom-dwelling fish has an elongated body and long barbels that help it locate food in dark or muddy conditions. It feeds on small fish, aquatic insects, worms, crustaceans, and other small organisms. The Stinging Catfish is known for its defensive spines, which can cause painful injuries when the fish is handled carelessly. It plays an important ecological role as both a predator and scavenger in Sri Lanka’s freshwater ecosystems and is valued as a food fish in some regions.