Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Superfish Aqua-Flow 300 Internal Filter. This compact filter is designed for smaller aquariums, offering efficient filtration and easy maintenance.

Image: The Superfish Aqua-Flow 300 Internal Filter, a compact black and grey unit with a transparent lower section for filter media, designed for efficient aquarium filtration.
Safety Instructions
Always read and follow these safety instructions carefully before using the filter to prevent injury or damage.
- Ensure the filter is fully submerged before plugging it into a power outlet.
- Always unplug the filter from the power supply before performing any maintenance, cleaning, or handling.
- Do not operate the filter if the power cord or plug is damaged.
- This appliance is for indoor use only and is designed for use with aquariums.
- Keep out of reach of children.
Setup
- Unpack the Filter: Carefully remove all components from the packaging. Inspect for any damage.
- Assemble the Filter: Ensure the filter cartridge is correctly seated within the filter housing. The Aqua-Flow 300 features a dual-action filter cartridge.
- Positioning: Place the filter inside the aquarium, ensuring it is fully submerged. The filter can be attached to the aquarium glass using the included suction cups. Position it in an area that allows for good water circulation.
- Connect Power: Once the filter is securely positioned and fully submerged, connect the power plug to a suitable electrical outlet.
Operating Instructions
The Superfish Aqua-Flow 300 is designed for continuous operation. Once plugged in, the filter will begin to draw water through its intake and return filtered water to the aquarium.
- Flow Rate: The filter has a flow rate of 540 L/H, suitable for maintaining water quality in smaller aquariums.
- Water Level: Always ensure the water level in your aquarium is above the minimum water line indicated on the filter to prevent dry running.
Maintenance
Regular maintenance is crucial for the optimal performance and longevity of your Aqua-Flow 300 filter. The easy-clean system simplifies this process.
- Unplug: Always unplug the filter from the power outlet before performing any maintenance.
- Remove Filter: Carefully remove the filter unit from the aquarium.
- Clean/Replace Cartridge: The dual-action filter cartridge should be rinsed regularly in old aquarium water (not tap water, as chlorine can kill beneficial bacteria) or replaced as needed. The frequency depends on the aquarium's bioload, but typically every 2-4 weeks.
- Clean Impeller: Periodically remove the impeller and clean it and its housing to prevent blockages and maintain efficient water flow.
- Reassemble and Reinstall: After cleaning, reassemble the filter components and place the filter back into the aquarium, ensuring it is fully submerged before plugging it back in.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Filter not running | No power; Impeller jammed; Air lock | Check power connection; Clean impeller; Gently shake filter to release air |
| Reduced water flow | Clogged filter cartridge; Dirty impeller | Clean or replace filter cartridge; Clean impeller |
| Noisy operation | Air in filter; Impeller not seated correctly; Worn impeller | Gently shake filter; Re-seat impeller; Replace impeller if worn |
Specifications
| Feature | Detail |
|---|---|
| Brand | Superfish |
| Model Name | Aqua-Flow 300 |
| Flow Rate | 540 L/H |
| Item Weight | 0.2 Kilograms (7 ounces) |
| Product Dimensions (LxWxH) | 4.33 x 4.33 x 4.33 inches |
| Material | Plastic |
| Color | Black |
| Included Components | Superfish Filtration Aqua-Flow 300 540L/H (1 item) |
Support and Warranty
For technical support or inquiries regarding your Superfish Aqua-Flow 300 filter, please contact your retailer or the Superfish customer service department. Keep your proof of purchase for warranty claims.
This product is typically covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the specific warranty terms provided at the time of purchase or on the manufacturer's official website for detailed information regarding coverage period and conditions.
For returns, please adhere to the return policy of your place of purchase, which typically allows for returns within 30 days of purchase for refund or replacement.





