Penn-Plax Bubble-Disk Aquarium Decor - Air Stone Bubbler – 4-Inch

Features:
 

• With the deluxe bubble-disk airstone you can create a beautiful circle of bubbles in your aquarium 
• The Deluxe bubble disk airstone provides a fascinating bubble cylinder while aerating your tank 
• Use in aquarium decorations to create a "volcano" of bubbles 
• Creates a circle of bubbles for healthy fish 
• Aerates aquarium water 
• Easy to use 
• 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 Inch tubing connection to provide an endless stream of bubbles 
• The Deluxe bubble disk can be set at any angle in your tank and can be buried without fear of clogging 
• Seashell design that will add look perfect in your underwater environment