Our advanced formula is packed with essential nutrients, vitamins, and minerals, offering a well-balanced meal for your finned friends. Your fish will relish every bite! Specifically formulated to provide food and multi-vitamins for your aquarium fish for up to 3 days. Block slowly dissolves to provide a time-released source of food during an aquarist's absence Sufficient for about 3 days per block Neutralizes pH and purifies water Contains a well balanced variety of freeze-dried food Rich in nutrients, vitamins and minerals Simply place the feeder in the aquarium, and it will take care of the rest. No need for complicated setups or constant monitoring. Effortless fish care at your fingertips.