Add a whole new decorative dimension to any aquatic environment with the Via Aqua LED Light and Airstone combination. Add attractive multi-colored ambient lighting to your aquarium, while providing an endless stream of life-sustaining oxygen bubbles to all of its inhabitants. This model features slow color-changing LED lights (each individual diode will gradually change to a different color every 3-4 seconds). Makes a great night light for nocturnal viewings! The 18" LED Light and Airstone utilizes 18 low wattage LED lamps and a low voltage transformer for energy-efficient operation. Self-weighted for secure placement. Simply connect to any standard air pump with a minimum of 1800 cc/m (sold separately). Includes: LED Light bar with integrated airstone, mounting suction cups, airline tubing, and transformer/power cord.