Marineland 4" Color Changing LED Bubble RingAt Marineland, innovation powers everything. From industry firsts to industry standards, Marineland products are designed with both performance and style in mind. Make it Marineland. Marineland Color Changing LED Bubble Ring automatically cycles through hundreds of colors for a beautiful glow. 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