1Easy to Install: When in use, the machine can be placed upright, or it can be embedded and fixed on the edge of the fish tank, it has various uses and is easy to operate. 2Adjustable: It can be applied to flake and granule feeding, and the amount of each feeding can be adjusted and controlled according to actual needs. 3Premium Material: The automatic fish tank feeder is made of high-quality plastic material, environmental friendly, sturdy and durable. 4. Automatic Fish Feeder for Travel: Our automatic feeder can help you feed your fish in the aquarium tank when you go out for work or travel, practical to use. 5Battery Powered: It is powered by 2 AAA batteries (not included), low power consumption, and the batteries can be replaced by yourself, very convenient.