Basic routine maintenance can keep your biOrb 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.
The biOrb Air stone 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.
This Air stone is suitable for all biOrb aquariums.