Penn Plax Volcano Airstone Aquatic OrnamentTake your aquarium back to prehistoric times with Penn Plax's Volcano Airstone Aquatic Ornament. The volcano ornament includes an airstone for a fun and decorative way to oxygenate the water in your aquarium. Our aquarium ornament is made of non-toxic, fish-safe resin. Our Penn Plax Volcano Airstone Aquatic Ornament will instantly create intrigue and add a decorative accent to any aquarium.
