Aquarium Air Stone Aerator 3.5-10 cm Nano Bubble Stone

Enhance aquarium oxygenation with a compact air bubble stone aerator. Available in four sizes: dia 3.5 cm, 5 cm, 8 cm, and 10 cm. Made from hard gold steel sand, processed at high temperature for excellent gas diffusion, ozone resistance, and durable performance. This bubble stone increases oxygen levels, lowers CO2, and helps create water currents to support fish respiration. What’s included: 1 × air bubble stone (no tubes) Usage Soak in water for 15 minutes before first use. Attach to a powerf