Create a healthier and more visually appealing aquarium with this Interpet Airstone. When placed at the bottom of your aquarium, the airstone will make a steady, subtle stream of bubbles, which will not only make your aquarium look like a more realistic, natural water-world, but also help disperse oxygen through the tank, so your fish remain happy and healthy. Available in a range of sizes, you'll be able to find an Interpet Airstone that fits your fish and your aquarium perfectly,