Innovative design combines aeration, light, and décor in one visually stunning display. Each nontoxic resin decoration is hand-painted for a unique, natural look. Volcano and Geyser both feature the Hydor Ario Turbo Air Pump with Red LED, to create colorful, illuminated bubbles. The unique turbo driven Air Pump actively mixes and propels air for oxygen-rich aquarium water. Silent operation - no noise or vibrations.