While this is not a new idea, in Vietnam it is just starting to be accepted. By changing the rice paddy format to include defined or raised rice growing soil, the water surrounding these can grow fish. There is no real difference to the actual water supply to the rice, but the fish provide additional nutrients to the rice through their excreta and provide another financial product crop for the farmers. Practical farming in this manner has shown that the benefit to the rice crop creates 15%-20% more growth allowing an increase from typically 2 annual harvests to 3, plus the fish revenue can create another harvest at least twice per year. In addition there are significant side benefits in that the water is cleaned by the fish and general environmental quality is improved. Fish consume insects and possibly reduce the need for insecticide spraying both reducing farming costs and producing a healthier, chemical reduced crop.