Penn-Plax ICBD1 Ice Castles Bubble Disk (3 Inch) (Pack of 2) Aquarium Air Stone(1 Stones)

With the Ice Castles Bubble Disk you can create a beautiful tower of bubbles that will add to your decor while helping to aerate your aquarium. Made of a durable porous plastic, each Bubble Disk can be connected to your air pump and tubing (not included) using the standard 3/16 tubing connection to provide an endless stream of bubbles. The Ice Castles Bubble Disk can be set at any angle in your tank and can be buried without fear of clogging that will add perfect look in your underwater environment.