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. No chemicals are used in its function making it safe for fish. Triple membrane fogging machines with LED lights for a backdrop will output the magic in a pond or fountain. 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.