Underwater Treasures brings you this attractive and functional Mossy Log Cave ornament to complement your custom aquatic environment. It makes a great stress-free hiding spot for smaller fish, and features a built-in airstone to supply essential oxygen to all your aquarium inhabitants. This incredibly realistic decoration is hand crafted, painted, and finished using only the highest quality materials. Underwater Treasures ornaments are all non-toxic, and safe for use in both freshwater and saltwater aquariums. Enhance the appeal of your aquarium with this exciting decoration! Please Note: air pump and airline tubing sold separately. 4.25" x 2.75" x 2"