Neptune Systems Automatic Feeding SystemAUTOMATIC FEEDING SYSTEM :: AFS Feed your fish consistently, and safely, while home or away. A key component of caring for aquatic animals is regularly providing them with food, but in amounts that get consumed immediately so as not to pollute the aquarium. On top of that, most species do best when they are fed all throughout the day. However, overfeeding of aquariums is one of the top reasons for water pollution and tank failures. FEED PELLET, FLAKE,