The Lychee Aquarium Fish Feeder Vacation Aquarium Automatic Fish Food Dispenser Tank Feeder Timer Auto Feeders for Holiday Vacation Fish Dispenser (AF-2003) is a great way to keep your fish healthy and happy. This feeder features an easy-to-use timer that allows you to set feeding times and rotate the feeding tray every hour. The feeder also has a clip-on mount that makes it easy to install and take off, and a double-sided sticker that makes it easy to identify which side of the feeder is up.