Spare Air Stone, suitable for all biOrb aquariums (including the biOrb Life 15).

• Basic routine maintenance can keep your aquarium clean and clear and its inhabitants happy.  Every 3-6 months you should replace your biOrb’s Air stone because over time, they clog up.
• Fits in the base of the biOrb underneath the filter cartridge. It breaks up the flow of air into the aquarium, splitting it into a mass of fine bubbles.

See a helpful video here showing you how to change the air stone.

1 air stone per pack.

See also the biOrb Service Kit