Add beauty and mystique to your aquarium with the Lifegard Underwater River Aquarium Ornament. This special ornament creates air bubbles that travel under a bridge like a rushing river. The mesmerizing illusion also helps oxygenate and create healthy water movement in your tank. Plus， it’s easy to install and safe for use in freshwater and saltwater tanks alike. Each kit comes with an air pump， check valve and fittings， decorative ornament， tubing， river housing and suction cups.