MADGININE 15 Pack Air Stone Compatible with Biorb Aquariums and Tanks, Cylinders Filter Replacement, Fit Freshwater & Saltwater

🐟[Universal Compatibility] Designed to be compatible with biOrb aquariums, Flow/HALO series 15 acrylic 4-gallon tanks. Replaces original air stones for biOrb Classic, Tube, Flow, Halo, and Life series. 🐟[Abundant Supply] This service kit includes 15 air stones, a generous amount. It generates a large number of dense bubbles in the surrounding area, promoting the survival of aquatic organisms. 🐟[Enhanced Oxygenation] The filter replacement regulate the airflow from the aquarium pump, creating optimal water surface movement, increasing oxygen levels, and improving the living conditions for fish and plants. 🐟[Tool-Free Installation] Simply soak the air stone filter in water for an hour before use. No tools required—just remove the filter, replace the air stone, and reinsert it. 🐟[Regular Replacement] For consistent airflow and system efficiency, we recommend replacing the air stones every 3 months. If the air stone filters for bio orb becomes clogged after weeks or months of use, replacement is advised.