Marina - Flexible Led Air Curtain - Small - GreenMarina air curtain provides and excellent way of adding visual pizzaz to aquascapes as well as improving water circulation and oxygenation. The air curtain is easy to install simply attach it to the bottom of the aquarium and connect an air pump. The flexible air curtain can be shaped to suit your needs, you can install it in a straight line to create a breath taking wall of bubbles and lights or shape it in a semi circle fashion around ornaments,