1. Introduction
Thank you for choosing the hygger Quiet Mini Air Pump. This pump is designed to enhance the health and well-being of your aquatic life by efficiently dissolving oxygen into your aquarium water. Its advanced piezoelectric ceramic plate technology ensures extremely quiet operation, making it ideal for various environments.
Please read this manual thoroughly before installation and operation to ensure proper use and longevity of your product.
2. Package Contents
Verify that all items are present and in good condition upon opening the package:
- 1 x hygger HG-811 Air Pump with Power Adapter
- 1 x 3.6 ft Long Air Tube
- 1 x 0.9 inch Air Stone
- 1 x Double-sided Sucker (Suction Cup)
- 1 x User Manual

Image: The package contents include the air pump, power adapter, air tube, air stone, double-sided sucker, and user manual.
3. Safety Instructions
- Always disconnect the power supply before performing any maintenance or handling the pump.
- Ensure your hands are dry when plugging or unplugging the power adapter.
- Do not operate the pump if the power cord or plug is damaged.
- Keep the pump away from direct sunlight and high temperatures.
- This pump is designed for indoor use only.
- Ensure the pump is placed above the water level of the aquarium to prevent water from siphoning back into the pump in case of a power outage. A check valve is highly recommended for this purpose.
- Keep out of reach of children.
4. Setup
Follow these steps to set up your hygger Quiet Mini Air Pump:
- Connect Air Tube and Air Stone: Attach one end of the provided air tube to the air outlet of the pump. Connect the air stone to the other end of the air tube.
- Install Check Valve (Recommended): Cut the air tube at a suitable point and insert a check valve (not included in this package, but highly recommended) to prevent water backflow. Ensure the check valve is oriented correctly according to its markings (air flows towards the aquarium).
- Position the Pump: Place the air pump in a dry location, preferably above the water level of your aquarium. Use the double-sided sucker to secure the pump to the side of the tank or another smooth surface if desired.
- Place Air Stone: Submerge the air stone in your aquarium. You can use the suction cup to secure the air tube or air stone to the tank wall.
- Connect Power: Plug the power adapter into a suitable electrical outlet.

Image: The hygger air pump with its air tube and air stone connected, ready for placement.
Video: This video demonstrates the general installation process for an aquarium air pump, including connecting the air tube and air stone.
5. Operating Instructions
Once properly set up, the hygger Quiet Mini Air Pump will begin operating immediately upon being plugged in. It is designed for continuous operation.
- Continuous Operation: The pump provides a steady stream of air bubbles to oxygenate your tank.
- Quiet Performance: Utilizing piezoelectric technology, this pump operates with minimal noise, making it suitable for bedrooms, living rooms, and offices.
- Energy Efficiency: With only 1.5 watts of power consumption, it is highly energy-saving.

Image: The hygger air pump operating quietly in an aquarium, demonstrating its low noise level compared to common sounds.
Video: This video showcases the quiet operation of a nano silent air pump in an aquarium environment.
Suitable Applications:
This pump is ideal for small fish tanks ranging from 1 to 15 gallons and hydroponic systems. It is perfect for:
- Fish Bowls
- Betta Tanks
- Planted Tanks

Image: Various small aquariums such as fish bowls, betta tanks, and planted tanks, illustrating suitable applications for the air pump.
Limitations:
Due to its compact size and low power consumption, this pump is not strong enough to power large air stones, protein skimmers, or sponge filters that require higher air volume.

Image: A visual representation indicating that the pump is not recommended for use with large air stones, protein skimmers, or sponge filters.
6. Maintenance
The hygger Quiet Mini Air Pump requires minimal maintenance due to its design without moving parts like diaphragms. However, regular checks of the air stone and tubing are recommended.
- Air Stone: Periodically check the air stone for clogging. If the bubble output decreases, clean the air stone by soaking it in a diluted bleach solution (rinse thoroughly before re-use) or replace it if heavily clogged.
- Air Tube: Inspect the air tube for kinks, cracks, or blockages. Replace if necessary to ensure optimal airflow.
- Pump Exterior: Wipe the exterior of the pump with a dry cloth to keep it clean and free of dust. Do not immerse the pump in water.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No air output | Power not connected; Air tube kinked or blocked; Air stone clogged; Pump malfunction. | Check power connection; Straighten or replace air tube; Clean or replace air stone; Contact customer support. |
| Weak air output | Air stone partially clogged; Air tube partially blocked or too long; Pump not suitable for tank size/accessory. | Clean or replace air stone; Shorten or replace air tube; Ensure pump is used with appropriate tank size (1-15 gallons) and accessories. |
| Pump is noisy | Pump not placed on a stable, flat surface; Air tube vibrating against tank; Bubbles breaking at water surface. | Ensure pump is on a stable surface; Adjust air tube position; Noise from bubbles is normal and not from the pump itself. |
If troubleshooting steps do not resolve the issue, please contact hygger customer support.
Video: This video demonstrates the operation of a similar aquarium air pump, including normal and intermittent modes, and shows its quiet performance.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | hygger |
| Model Number | YYOJ (HG-811) |
| Power Consumption | 1.5 Watt |
| Flow Rate | 420 ml/min |
| Recommended Tank Size | 1-15 Gallons |
| Product Dimensions | 6.1 x 6.1 x 2.03 cm |
| Item Weight | 100 Grams |
| Material | Piezoelectric Ceramic Plate |
9. Warranty and Support
This hygger product comes with a one-year warranty. To obtain warranty service and other after-sales support, the product must be purchased from an authorized hygger dealer. Please retain your proof of purchase.
For technical assistance, troubleshooting, or warranty claims, please contact hygger customer support through the retailer where you purchased the product or visit the official hygger website for contact information.





