Marineland ML90532 Auto Color-Changing LED Bubble Ring, 4-Inch
the led bubble ring with 6 leds is great for smaller aquariums or to highlight a specific area in a larger aquarium use gravel to anchor the led bubble ring on the bottom of the aquarium. includes a 10-Feet long power cord and an on/off switch for the leds add the crystal décor or a waterwonders plant for added interest