Put a robot in charge of feeding your fish with the Penn Plax Daily Double Plus Programmable Fish Feeder. Your fish will will love the regularity of this feeder. It can be programmed to dispense fish flakes twice a day. It fits any size aquarium. * Automatically feeds fish * Dispenses flake food twice a day * Safe, accurate, and easy way to feed your fish * Easily attaches to all size aquariums * Makes a perfect gift for aquarium lovers