Aqueon Flex LED Bubble Wand for Aquariums, Blue, 21" L X 2.25" W X 3" H The Aqueon Flexible LED Bubble Wand is a unique addition to your aquarium's environment Flexible Wand bends around other aquarium dcor Blue LEDs Ideal decorative accent or night light Decorative bubble curtain for your aquarium Bubble Wands can be powered by Aqueon Air Pumps, all that is needed is tubing!