Biorb Air Stone

Biorb Air Stone breaks up the flow of air into the aquarium into a mass of bubbles. After a time the air stone can become blocked by calcification, especially in hard water areas, reducing the flow of air into the aquarium. Improves water flow; Replacing the air stone every few months will keep your aquarium properly filtered; Keep your aquarium bubbling away with biOrb Air Stones; Can be used with any biOrb aquarium;