Automatic feeders allow your fish to be fed even when you are not home making aquarium keeping much easier. They are available in the following two versions: Aqua Fish Feeder- Clock-controlled feeder, the easiest way to feed your fish every day, even when you are not at home. Affordable feeder suitable for flake and pellet feed. The feeder comes with 2 feed containers; 1 for small feed and 1 for larger feed. Easy to programme to feed once or twice a day. Pro Aqua Fish Feeder- professional computer-controlled feeder with unique screw wheel construction. Feed your fish several times a day for optimal growth, even when your not at home. Suitable for all pellet feeders up to 3mm, the screw wheel construction ensures a precise and constant amount of feed. Programmable for automatic feeding 1 to 3 times a day. The amount of feed is adjustable over a very wide range from 0.15g to 10g per day, dispending on the specific gravity of the feed.