1. Introduction
Thank you for choosing the Sicce Shark Pro Nano 250 Internal Aquarium Power Filter. This manual provides essential information for the safe and efficient operation of your new filter. Please read all instructions carefully before installation and use.
2. Safety Information
Always disconnect the power supply before performing any maintenance or handling the filter. Ensure your hands are dry when plugging or unplugging the unit. This product is designed for submersible use in freshwater and saltwater aquariums. Do not operate the filter out of water. Keep out of reach of children.
3. Package Contents
- Sicce Shark Pro Nano 250 Filter Unit
- Air Silencer
- Spray Bar
- 2 Filter Cartridges (Carbonated Foam for chemical filtration, Foam 30 PPI for mechanical filtration)
- Magnetic Connection System (MCS) for up to 6 mm (0.25") glass
- Multidirectional Flow Deflector
4. Product Overview
The Sicce Shark Pro Nano 250 is a compact internal power filter designed for aquariums up to 13 gallons. It features a modular filtration system and multiple water flow options for optimal water clarity and oxygenation.

Figure 1: Sicce Shark Pro Nano 250 Filter Packaging

Figure 2: Detailed diagram of the Sicce Shark Pro Nano 250 filter components and features.
5. Setup Instructions
- Assemble Filter Modules: The filter comes with independent modules for multi-stage filtration. Ensure the included Carbonated Foam (chemical filtration) and Foam 30 PPI (mechanical filtration) cartridges are correctly placed within the filter body. Optional extra modules can be added to upgrade filtration volume.
- Attach Magnetic Connection System (MCS): The filter utilizes a magnetic connection system. Attach the external magnet to the outside of your aquarium glass, aligning it with the internal magnet on the filter unit. The MCS is rated for up to 6 mm (0.25") glass thickness.
- Select Water Flow Option: The Shark Pro Nano 250 offers four water flow options:
- Unidirectional Flow: For a direct stream of water.
- Multidirectional Flow: Use the included deflector for broader water movement.
- Spray Bar: Attach the spray bar accessory for gentle, even water distribution and surface agitation.
- Oxygen Enrichment with Venturi: Connect the air silencer with air regulation on the Venturi for increased oxygenation.
- Position the Filter: Place the filter inside your aquarium in a desired location. The compact design allows for easy hiding in corners. Ensure the filter is fully submerged before powering on.

Figure 3: Filter media modules for multi-stage filtration.

Figure 4: Magnetic Connection System (MCS) for secure attachment to aquarium glass.
6. Operating Instructions
- Power On: Once the filter is correctly installed and fully submerged, plug it into a suitable power outlet.
- Adjust Water Flow: The filter includes a flow kit for water flow regulation. Adjust the flow rate as needed for your aquarium inhabitants and setup.
- Adjust Air Regulation (Venturi): If using the oxygen enrichment option, adjust the air silencer on the Venturi to control the amount of air introduced into the water.
- Versatile Placement: The filter can also operate effectively in horizontal positions, making it suitable for turtle tanks or shallow ponds.
Video 1: Demonstration of the Sicce Shark ADV Internal Filter, showcasing its features and operation in a freshwater and saltwater application. Note: This video features a similar model (Shark ADV) from the same brand.
7. Maintenance
Regular maintenance is crucial for the longevity and efficiency of your filter. Always disconnect power before maintenance.
- Filter Media Cleaning: The modular filter cartridges can be easily removed for cleaning. Rinse the mechanical sponges in old aquarium water (not tap water) to preserve beneficial bacteria. Replace chemical media (like carbon) as recommended by the manufacturer, typically every 2-4 weeks.
- Impeller Cleaning: Periodically inspect and clean the impeller to ensure optimal performance and prevent blockages. The impeller is accessible for easy removal and cleaning.

Figure 5: Accessing the impeller for cleaning.
8. Troubleshooting
- Reduced Flow: Check if filter media is clogged and requires cleaning or replacement. Inspect the impeller for debris or blockages.
- Unusual Noise: Disconnect power and check the impeller for any foreign objects or damage. Ensure the filter is securely mounted and fully submerged.
- Filter Not Starting: Ensure the power cord is securely plugged in. Check for power outages. If the impeller is stuck, clean it thoroughly.
9. Specifications
| Specification | Detail |
|---|---|
| Model Name | Shark Pro Nano 250 |
| Item Model Number | SIC119 |
| Brand | Sicce |
| Max Flow Rate | 250 l/h (65 GPH) |
| For Aquarium Size | Up to 50 L (13.2 US gal) |
| For Glass Thickness | Up to 6 mm (0.25") |
| Power Consumption (110-120V 60Hz) | 5.5 W |
| Cable Length | 7.55 ft |
| Item Weight | 1 Pounds |
| Item Package Dimensions | 8.27 x 3.82 x 3.27 inches |
| Included Components | Filter, Air Silencer, Spray Bar, 2 Filter Cartridges |
10. Warranty and Support
The Sicce Shark Pro Nano 250 comes with a 5 Year Warranty. For technical support, spare parts, or warranty claims, please contact Sicce customer service or visit the official Sicce website.
