hygger Nano Air Stone for Aquariums, 2 Inch 2 Pack Quiet Fish Tank Bubbler High Dissolved Oxygen Diffuser Kit, Self-Sinking Aquarium Bubbler Aerator Air Pump Accessories for Fish Tank Hydroponics

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• NANO MICRO-BUBBLE TECHNOLOGY: hygger air stone's nanoporous structure produces countless ultra-fine bubbles; As these bubbles gently burst, they release oxygen while running with extremely low noise and causing minimal surface disturbance; Whether in an aquarium, pond, or hydroponic system; Fish tank bubbler quietly adds oxygen while keeping water stable, effectively raising dissolved oxygen levels and creating a much better living environment for aquatic life.
• SELF‑SINKING & ANTI‑CLOG: Aquarium air bubbler made from natural minerals through high‑temperature sintering sinks right to the bottom on its own, no extra weight needed; Its sintered micro‑porous structure resists clogging and provides excellent corrosion resistance with long‑lasting performance; The sturdy ABS outer shell protects the airstone from wear and tear; Perfect for freshwater and saltwater aquariums
• USAGE INSTRUCTIONS:Before first use, soak the aquarium bubbler in water for 1‑2 hours for fine, even bubbles; Repeatedly connect and disconnect the air pump several times to purge air from the micro‑pores, producing abundant uniform bubbles; To prevent clogging, clean the fish tank air stone every two weeks: soak it in water, gently brush the surface, and air dry in a cool, ventilated place
• COMPLETE ACCESSORIES: Aquarium air stone is available in 2 inch length for a 3W air pump, suitable for aquariums with length up to 40 cm (16 inches), and in 4 inch length for a 5W air pump, suitable for aquariums with length from 60 to 130 cm (24 to 52 inches);Standard airline tubing connector is included, but the air pump is not included; Package includes 1 air stone, 1 x 1.5m (59 inch) airline tubing, 1 check valve, 1 tee connector, 1 suction cup, and 1 user manual
• FRESHWATER & SALTWATER SAFE: Works in all aquarium types: tropical, reef, cichlid, planted, marine; A reliable fish bubbler for daily oxygenation and water circulation; If you have any questions about the aerator stone, please contact us and we will be happy to assist you