The Aqua One Airstone Ball is a compact and effective tool designed to enhance oxygenation in aquariums. Available in various sizes, including 2.5cm, 5cm, and 10cm diameters, these airstones are suitable for coldwater, tropical, and marine setups. They produce a stream of fine bubbles that increase surface agitation, accelerate oxygen replenishment, and help release carbon dioxide buildup. These airstones can be positioned anywhere in your aquarium and even buried in the substrate or under an ornament, providing both functional and aesthetic benefits. They are compatible with standard airline tubing and are easy to install and maintain.