hygger Aquarium Air Stone, 3.4-Inch Round Nano Diffuser with Fine Bubbles

The hygger 3.4-inch round nano air stone is an ultra-quiet diffuser for aquariums, fish tanks, hydroponic systems, and small ponds, producing fine bubbles from an air pump through a sintered nano-material disc with a stainless steel base.

• Fine, dense, uniform bubbles — help disperse air through the water.
• Adjustable blue control valve — lets you regulate bubble intensity.
• 3.4 x 3.4-inch (8.6 x 8.6 cm) disc — sized for recommended 30–70-gallon freshwater tanks.
• Sintered nano material and a stainless steel base — provide the stone’s construction and bubble-forming surface.
• Air stone kit with tubing and valves — includes key setup accessories; the air pump is not included.

This diffuser is made for adding aeration to freshwater aquariums and fish tanks, as well as hydroponic systems and small ponds. It turns air-pump output into a fine stream of bubbles for water where aeration is part of the setup. The adjustable airflow and included connection accessories make it suitable for setups where bubble intensity needs to be controlled.

How does the hygger air stone affect bubbles and water?

The hygger air stone breaks air-pump output into small, dense, evenly distributed bubbles. Its ultra-fine pores create the fine-bubble output, which is designed to enhance oxygen solubility in the water. The airflow is also intended to increase oxygen levels, reduce carbon dioxide levels, and raise pH. The fine-pore design is made to resist clogging from floating material, helping maintain oxygen release over time.

• Use the blue valve to adjust the intensity of the bubbles.
• The round stone weighs 3.1 oz (88 g).

What tank size and air pump does this diffuser suit?

The 3.4 x 3.4-inch (8.6 x 8.6 cm) air stone is recommended for a 30–70-gallon (114–265 L) medium freshwater fish tank, with an air pump rated at 4 W or higher. Choose its placement and airflow with tank size, fish density, and water depth in mind. It can also be used in hydroponic systems and small ponds.

• The recommended tank range is for freshwater setups.
• An air pump is required and is not part of the kit.

What is included, and how do I prepare the air stone?

The hygger kit contains one air disk stone, one length of air tubing, one control valve, one check valve, one suction cup, one T-shaped connector, and one user manual. Before use, soak the stone completely in water for 1 hour to prepare it for operation.

• The check valve and T-shaped connector are included among the setup accessories.
• The suction cup is included for positioning the stone.

This air stone suits aquarium keepers and hydroponic growers who want a compact diffuser with adjustable airflow and fine bubbles, and it can also serve small ponds. For a freshwater aquarium, its recommended fit is a medium 30–70-gallon tank paired with an air pump of at least 4 W.

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