Hydor ARIO 2 COLOR GREEN LED Aquarium Aerator Green Bubbles UL Suitable for use in freshwater aquariums Supplied with all components necessary for it's functioning Less Vibration and noise compared to traditional air pumps Adds air bubbles and color to aquariums Easy and simple to install Suitable for use in freshwater aquariums Supplied with all components necessary for it's functioning Less Vibration and noise compared to traditional air pumps Adds air bubbles and color to aquariums Easy and simple to install