Fish farming means, raising fish commercially in tanks, ponds or other enclosures for the purpose of producing food. Commercial fish farming has already established as a profitable business venture throughout the world. Fish is a great source of food and protein. The demand and price of fish and fish related products are also increasing rapidly, in accordance with rapid population growth. This is the main reason of increasing this business around the world. Almost all countries around the world are somehow suitable for fish farming business. But the countries with coastal areas are very suitable for this business. There are many areas, where fish farming business is the only way of livings for the people.