The application of feed puffer is very wide, such as sea bass, snakeheads, guanyin, American frogs, turtles, turtles, fork-tailed catfish and other famous varieties, as well as conventional culture of grass carp, carp, crucian carp and other species. For the physiological function of the more special American frog, perch and other species, with floating feed for breeding, it is more convenient, more can show its superiority.