Ultra-silent 25mm nano air stone Diffuser

Bring clarity and calm to your aquarium with the Castle Dawn Aquatics 25mm Nano Air Stone Disc — a compact, ultra-silent diffuser that produces an elegant cloud of micro-bubbles. Ideal for small aquariums and hydroponic systems, this nano stone not only looks stunning but significantly improves water oxygenation.

Crafted for minimal noise, the micro-bubbles burst quietly at the surface, making it suitable for tanks placed in bedrooms, offices, or living spaces. The included control valve allows for adjustable airflow, so you can fine-tune the bubble density to suit your setup.

Key Features and Important Notes:

• What’s Included:
  – 1 × 25 mm nano air stone disc
  – 1 × control valve
  – 1 × suction cup
  ⚠️ Air Line and air pump not included.
• Bubble Output: Produces dense micro-bubbles for increased oxygen levels and a shimmering curtain effect.
• Silent Operation: Designed to reduce bubble bursting noise – perfect for quiet spaces.
• Oxygenation Benefits: Helps increase oxygen, lower CO₂, and raise pH – ideal for aquatic life and hydroponic roots.
• Adjustable Flow: Comes with a control valve for airflow adjustment and bubble density.
• Mounting: Strong suction cup keeps the disc securely in place on the tank floor or wall.
• Use Case: Suitable for aquariums, nano tanks, betta aquascapes, and hydroponic nutrient systems.
• Size: 7.5 × 3.5 × 2.5 cm (H × L × W) – 2.95 × 1.38 × 0.98 inches
• Warranty: 1‑Year Warranty (T&Cs apply).