The Eheim Everyday Fish Feeder is easy to use and reliable keeping for fish food dry and providing a consistent food dosage based on your needed feeding schedule. This fish feeder is for everyday use or when you want to go away for extended periods of time! This allows you to step away from your aquarium without worrying your fish friends are going hungry or your aquarium babysitter is overfeeding your precious tank! This battery bowered feeder can be programmed for up to 4 feeding cycles daily with single or double serving sizes. It includes an alarm to notify you of low battery power and a built in ventilator to prevent moisture build up and spoiling the food.