Penn Plax Aerating Action Ornament, Pirate Skeleton  Lifts Rum Jug Up and Down AIR DRIVEN ORNAMENTS BRING ANIMATION TO YOUR TANK: the real motion air driven ornaments movements provide fun and entertaining action while aerating your tank JUG RISES AND FALLS WITH THE STEADY STREAM OF BUBBLES: the skeleton lifts the jug of rum to his mouth with the bubbles to take a swig PROVIDES MUCH NEEDED AERATION FOR YOUR TANK: bubbles escape the jug to provide your tank with much needed air. Requires air pump and standard 3/16 tubing (not included) MADE OF FISH SAFE AND DURABLE MATERIAL: the Penn Plax Aerating Pirate Skeleton is made from a durable plastic resin that is safe for your freshwater and saltwater / marine tank SHOP PENN PLAX FOR ALL YOUR PETS NEEDS: continue to customize your aquarium with Penn Plax Action Ornaments and other decorations and dcor