biOrb Air Stone

Essential Aeration Component for biOrb Tanks: The biOrb Air Stone sits beneath the filter cartridge at the base of your aquarium, producing a fine, steady stream of air bubbles for consistent oxygen circulation and a healthier aquatic environment. Supports Efficient Oxygen Exchange: By regulating the airflow from your aquarium pump, this aeration stone ensures optimal surface movement - helping oxygenate the water and improve conditions for fish, plants and beneficial bacteria. Compact, Safe & Non-Toxic Design: Measuring 3.5 x 1 cm, this solid mineral stone is completely inert - it won’t affect pH or water quality. It’s safe for all fish and ideal for both freshwater and saltwater biOrb setups. Easy To Install & Replace: No tools required - simply remove your biOrb filter cartridge, swap out the air stone, and reattach. We recommend replacing every 3 months to maintain consistent airflow and system efficiency. Creates Calming Bubble Display: As well as supporting aquarium health, the air stone’s gentle bubble effect enhances your tank’s look and feel - ideal for biOrb owners who value visual tranquillity and fish-friendly design. Universal Compatibility: Designed to fit all biOrb aquariums, regardless of model or size. Whether you're keeping tropical, marine or coldwater fish, this air stone delivers reliable performance every time. Quality Trusted Around the World: Part of the OASE Group, biOrb blends expert engineering with elegant design. Known for innovation & reliability, biOrb products are trusted by aquarists around the world to support healthy, beautiful aquatic setups.