The Penn Plax Aquarium Air Stone provides the necessary oxygenation to your fish tank with a steady stream of bubbles. Attach this air stone to any standard 3/16 airline tubing (sold separately) and it’s ready to use. For larger tanks, multiple air stones can be used in a series. Position this air stone flat or at an angle; it’s blue color will blend in with the surroundings of the tank. The air stone can also be covered in gravel to be completely hidden from sight. The extended sides provide leverage to prevent the air stone from floating in the tank and can be secured under gravel. This aquarium aerator measures 10 inches by 2 inches and is suitable for both freshwater and marine tanks. Long lasting and durable, the Penn Plax Aquarium Air Stone is a smart choice for any fish enthusiast.

• This 10 inch aquarium air stone creates a steady flow of bubbles. This also increases the oxygenation of your fish tank.
• Attaches easily to any air pump with a standard 3/16" airline tubing. Multiple stones can be attached in a series for larger tanks.
• This aquarium aerator has extended sides to be covered in gravel which holds product to bottom of aquarium. Even with the strong flow of bubbles it will stay secure.
• Air stone can be positioned anywhere in your fish tank. Blue color blends in with surroundings or it can be hidden under gravel.
• Air Stone measures 10 inches in length by 2 inches wide and can be used in both  freshwater and saltwater tanks.
• Provides a continuous tower of bubbles to help aerate your aquarium
• Durable plastic can be buried or hidden to add to your décor
• Uses a standard 3/16" tubing connection