Balsa Fish. Mekong fish, also known as balsa fish, native to the Mekong River belongs to the order of catfish. There is Mekong grilled fish brand in China. The company is headquartered in Chongqing. This fish is a kind of salty freshwater fish from the mouth of the Mekong River, which has delicate meat and no messy thorns of freshwater fish, suitable for grilling. So now everywhere grilled fish are this kind of fish. This kind of fish is very suitable for the elderly and children to eat, nutritious, no thorns, no bones taste delicious, rich in vitamins.