SODIAL(R) Automatic Fish Feeder Digital Aquarium Tank Fish Food Feeder Timer Mini shape, space-saving for your aquarium. Patented design for moistureproofing, mixing, and crumbling food. No jam, no clog and no fuss. Can fill the container with food without disassembling the automatic feeder. Programmable food volumes and feeding times. By adujusting the slider, you may increase or decrease the amount of food dispensed per rotation. Works with dry loose flakes or pellets. Up to four times setting in one day. The logo Lo displayed on the LCD indicates the power is low. Has a built in digital clock for accuracy. Can work both automatically and manually. A clear easy-to-read LCD screen which shows all info at a glance. The feeder can be mounted in two ways (free-standing or rim-mounted) according to the shape of your aquarium. Safe and convenient. Simple operation and installation.