Enhance the oxygenation and water circulation in your aquarium with this high-performance Nano Air Stone, designed to release a large number of fine bubbles that significantly increase the dissolved oxygen rate. Crafted from durable ABS and nano stone materials, this air stone features a frosted fine air outlet that produces delicate, atomized bubbles, promoting healthier aquatic environments. Key Features: · Superior Oxygenation: Generates a high dissolved oxygen rate by releasing abundant fine bubbles, increasing the contact area with the water surface and promoting efficient water circulation. · Fine Bubble Technology: Durable frosted material air outlet ensures bubbles are delicate and evenly dispersed, achieving excellent atomization effects for optimal oxygen diffusion. · Quiet and Energy Efficient: Operates at low pressure with noise levels under 30 dB, driven by a 1W air pump, making it both energy-saving and silent for a peaceful aquarium environment. · Secure Installation: Equipped with a large suction cup that firmly holds the air pipe in place, preventing the air stone from moving and ensuring consistent bubble output. · Durable Construction: Made from high-quality ABS and nano stone materials, providing long-lasting durability and reliable performance over time. Specifications: · Item Type: Nano Air Stone · Material: ABS + Nano Stone · Color: As Pictures Shown · Size Options:  - S Size: Approx. 10 x 4 cm (3.94 x 1.57 inches)  - M Size: Approx. 20 x 4 cm (7.87 x 1.57 inches) Usage Instructions: 1. Designed for use in fish tanks to increase oxygen levels; use with air tube and oxygenator. 2. Soak the air stone in water for 15 minutes before initial use to activate. 3. For long-term use, clean regularly to remove dirt and prevent bubble reduction; the air stone can be reused after cleaning. Usage Tips: Ensure all air pump accessories are properly connected. To quickly achieve atomization, repeatedly unplug the tube from the fine adjustment valve’s back door, allowing water to enter the tube and enhance bubble formation. This Nano Air Stone is an essential accessory for maintaining a healthy aquatic environment by improving oxygen levels and water movement, suitable for a variety of aquarium sizes and setups.