EHEIM Everyday Fish Feeder is a compact fish feeder with actively aerated feeding chamber. This unit inclues a clamp for fixing to open top aquariums or terrariums. Easy to understand programming, double dosage of food is programmable. The Everyday Feeder has an adjustable slider which allows you to control the portions. Give your fish snacks with a touch of a button. Works with most types of food: granulate, sticks, pellets, or flakes Warning system warns you when low battery power. Splash proof keys. Batteries included. Capacity of 3.3 oz Drum will not stop with feed slot in the downward position.USA