Supa Airline Airstone is an absolutely essential component of your aeration system to your aquarium.
The Airstone attaches to the end of your airline tube to diffuse the flow of air into a fine mist of small bubbles. This enhances the surface area of contact of the bubbles which greatly enhances the oxygenation of the aquarium.
So for a healthy, oxygen rich aquarium, these Airstones are vital!
Pack contains 2 Airstones.