=”Betta Air stones create a wall of air bubbles to decorate, aerate and improve circulation in your aquarium. To install, connect to standard (4/6mm) silicone or plastic air line from the air pump and lay anywhere in the aquarium. The stone can be hidden fr”&”om view using rocks, plants, or other d�cor etc. Betta 1� Air stones are also suitable for use with under-gravel filters. Recommended for use with Betta Airline Tubing, made from either silicone or plastic. 2 air stones per card.
