The Digital Mini Automatic LCD Aquarium Fish Tank Food Feeder is a battery-operated, automatic feeder that provides food to your fish automatically and consistently. With a target species of fish, this feeder is designed to provide optimal nutrition for your fish. The feeder features a high accuracy submersible aquarium index thermometer that allows you to keep track of the water temperature in your aquarium. The feeder also has a timer that allows you to set feeding times up to four different times each day.