Appliance can be placed vertically or fixed on fringes of tanks, multiple use and simple operation. * Can be set up to feed once or twice per day. Besides the auto function, every press of "MANUAL" will run the feeding once. * Apply to feeding of flakes and granules, and quantities control. * The product combines the functions of moisture proof and crush for foods. * After twist the rotor, it will rotate and stop at the position where the feeding stops.