A practice of aquaculture is also known as fish farming. This is now a major industry and contributing significantly to food security, livelihood, and economy.          Aquaculture covers a variety of fish and shellfish species for freshwater, seawater and brackish water, and also associated with artesian springs and clean primary and secondary source of water. Fish farming options are:  Capital intensive, using hatcheries that allow breeding and selection of desired high value species for grow out;  Open water fish farming, fish are dispersed in bodies of water that includes rivers, dams and reservoir, irrigation canals, lakes, flood plains, beels  (large depression) , and others. In these, fish farmers have little control of the water, as they do not own them and it is not possible to fertilize the water. Fishes rely on natural food and vegetation; Pond or cage culture, fish fry or fingerlings are stocked in a selected size for extensive or semi-intensive farming. These methods require proper water and feeding management.  In the third world countries, small-scale aquaculture plays an opportunity for locals for alternative livelihood to generate income and provision of food for the family.