Ideal for larger ponds or fountains, this fogger features a triple membrane and sets of LED lights in blue, red and yellow that change every few seconds for continued surprises. Incorporates a float ring that keeps the unit below water for maximum enjoyment. This fogger uses no chemicals, making it safe for fish and other aquatic life. LED lights switch colors every few seconds, giving the fogger an added fun effect. This water fogger uses the water from your pond or large water body to create a beautiful fog, without heating the water or making it unsafe for fish.