Betta fish are native of Thailand. Naturally prefer to live in still water such as marshes or man field. They are often found along the shoreline and shallow water plants. The fish that are in the same group with them, including labyrinth fish.The fish in the respiratory organs. The fish that live in low oxygen. Thus making it possible to fish in a bottle that has a narrow mouth bottles. Betta fish are classified as carnivorous.(Insectivores).