Hygger Aquarium Air Stone, Bubble Stone Fish Tank Oxygen Stone Ultra Silent Deep Dissolving Oxygen Diffuser Kit For Aquarium Fish Tank And Hydroponic (Black, 4 Inch)

Hygger Aquarium Air Stone can create a great deal of tiny bubbles that your fish will love. Ideal for freshwater, saltwater aquariums, hydroponic, or in aqua farms, aqua cultures, create amazing beautiful scenes under water.

🐡Features:
1. The surface is frosted, fine and smooth, and the air is more evenly and fine.
2.T-type interface makes the air plate closer to the bottom of the fish tank, and the air is smooth.
3.Regulating valve: Control the rotating plug to adjust the size of the airflow.
4. Nanomaterials are not easily dissolved, are durable and have a service life of 2 to 3 years.
5. Venting evenly, fine bubbles, high dissolved oxygen rate, super quiet.
6. Easy to clean, exquisite workmanship, suitable for fresh water and salt water.

🐡Note:
1. Long-term use, if the dirt is blocked, when the air bubbles are reduced, it can be taken out and washed repeatedly.
2. It is better to soak in the bathtub for two hours before use.
3. If the water depth exceeds 40cm, the power can be increased as appropriate.

🐡Specification:
- Sizes: 4 inches.
- Weight: 15.2 ounces / 430 grams.
- Exit size: 4mm or 8mm hoses.
- Compatible air pump power: 4W or higher power air pump.