=”Cylinder Air stones create a wall of air bubbles to decorate, aerate and improve circulation in your aquarium or pond. To install, connect to standard (4/6mm) silicone or plastic air line from the air pump and lay anywhere in the aquarium or pond. The sto”&”ne can be hidden from view using rocks, plants or other d�cor etc. Recommended for use with Betta Airline Tubing, made from either silicone or plastic.
