A fluid motion device for agriculture and fisheries, comprising: a hollow tube with a fluid intake and a fluid outlet (1), a fluid motion generator source (2), and a welded pipe (3) with the optimum characteristics such that welded pipes has at least 2 pipes connected, the distance between pipes is equal or close to whereas by measuring the outer edge of tube. It is to create a device to make the water flow with constant speed in all area and to move in a straight line or nearby.