1. Uvod
This manual provides detailed instructions for the safe and efficient operation, installation, and maintenance of your SunSun HJ-511 Aquarium Internal Filter. This internal filter is designed for use in freshwater and marine aquariums ranging from 20 to 50 liters, providing mechanical filtration and aeration. Please read this manual thoroughly before use to ensure proper function and longevity of the product.
2. Sigurnosna uputstva
Always observe basic safety precautions to reduce the risk of fire, electric shock, and injury to persons.
- Osigurajte napajanje voltage matches the rating label on the filter.
- Ne koristite uređaj ako je oštećen kabel ili utikač, ako ne radi ispravno ili je pao ili oštećen na bilo koji način.
- Kako biste izbjegli mogućnost da se utikač ili utičnica uređaja pokvase, postavite postolje za akvarij i spremnik na jednu stranu zidne posude kako biste spriječili da voda kapne na utičnicu ili utikač.
- Always unplug the filter from the outlet when not in use, before putting on or taking off parts, and before cleaning. Never pull the cord to disconnect from the outlet. Grasp the plug and pull to disconnect.
- Do not immerse the power cord or plug in water or other liquids.
- Ovaj uređaj nije namijenjen za upotrebu od strane osoba (uključujući djecu) sa smanjenim fizičkim, senzornim ili mentalnim sposobnostima, ili nedostatkom iskustva i znanja, osim ako im je dat nadzor ili upute o korištenju uređaja od strane osobe odgovorne za njihovu sigurnost.
- Ensure the filter is fully submerged in water during operation. Running dry will damage the motor.
3. Sadržaj paketa
Prilikom otvaranja pakovanja provjerite da li su sve komponente prisutne i u dobrom stanju.
- SunSun HJ-511 Internal Filter Unit
- Filter Media Sections (typically two)
- Air Injector Kit (air tube, air regulator)
- Usisne čašice za montažu
- Korisnički priručnik (ovaj dokument)
4. Značajke proizvoda
- Compact and quiet operation.
- Provides excellent mechanical water cleaning.
- Equipped with two filter sections for efficient filtration.
- Integrated air injector for water aeration, eliminating the need for a separate air pump.
- Flow rate can be regulated to suit aquarium needs.
- Suitable for both freshwater and marine aquarium environments.
5. Postavljanje i instalacija
Follow these steps to properly install your internal filter.
- Raspakujte filter: Pažljivo izvadite sve komponente iz ambalaže. Pregledajte da li ima oštećenja.
- Assemble Filter Sections: Ensure the filter media is correctly placed within the two filter sections. Stack the sections securely onto the pump head.
- Attach Air Injector (Optional): If aeration is desired, connect the air tube to the air intake nozzle on the pump head. Attach the air regulator to the other end of the air tube. Position the air regulator above the water surface.
- Mounting the Filter: Attach the suction cups to the designated points on the filter housing. Submerge the filter completely in the aquarium water. Press the suction cups firmly against the inner glass wall of the aquarium to secure the filter. Ensure the filter is positioned vertically and is fully submerged.
- Povežite se na napajanje: Once the filter is securely mounted and fully submerged, plug the power cord into a suitable electrical outlet.

Image 1: The SunSun HJ-511 Internal Filter shown fully assembled and submerged in an aquarium, ready for operation. The filter is attached to the aquarium glass using suction cups.
6. Uputstvo za upotrebu
Once installed, the filter will begin operating immediately upon being plugged in.
- Flow Regulation: The filter features an adjustable flow rate. Locate the flow control switch or lever on the pump head and adjust it to achieve the desired water circulation for your aquarium size and inhabitants.
- Air Injection: If the air injector kit is installed, air will be drawn into the water flow, creating bubbles and increasing oxygen saturation in the aquarium. The amount of air can be regulated using the air regulator valve on the air tube.
- Kontinuirani rad: For optimal water quality, the filter should operate continuously.
7. Održavanje
Regular maintenance is crucial for the efficient operation and longevity of your filter.
- Isključite napajanje: Uvijek isključite filter iz električne utičnice prije bilo kakvog održavanja.
- Uklonite iz akvarija: Carefully detach the filter from the aquarium glass.
- Disassemble Filter: Separate the pump head from the filter sections. Open the filter sections to access the filter media.
- Očistite filter medije: Rinse the filter sponges and other media thoroughly with old aquarium water (from a water change) to preserve beneficial bacteria. Do not use tap water directly, as chlorine can kill these bacteria. Replace filter media as needed, typically every 2-4 weeks depending on aquarium load.
- Čisti impeler: Gently remove the impeller from the pump head. Clean the impeller and its chamber with a small brush to remove any debris or mineral buildup.
- Ponovo sastavite i instalirajte: Reassemble the filter components in reverse order. Ensure all parts are securely fitted. Reinstall the filter in the aquarium and plug it back in.
Napomena: The frequency of cleaning depends on the bio-load of your aquarium. A heavily stocked tank will require more frequent cleaning.
8. Otkrivanje problema
If your filter is not operating correctly, refer to the following common issues and solutions.
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Filter se ne pokreće ili je protok slab |
|
|
| Pretjerana buka |
|
|
| No air bubbles from injector |
|
|
9. Specifikacije
| Feature | Detalj |
|---|---|
| Broj modela | HJ-511 |
| Brand | SunceSunce |
| Suitable Aquarium Size | 20 do 50 litara |
| Filter Type | Interni filter |
| Filtracija Stages | Two filter sections (mechanical) |
| Aeration Feature | Integrated air injector |
| Regulacija protoka | Podesivo |
| Težina artikla | 272 g |
| Dimenzije paketa | 18.03 x 10.41 x 5.84 cm |
10. Garancija i podrška
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support or inquiries regarding replacement parts, please contact SunSun customer service through their official weblokaciji ili ovlaštenim distributerima. Sačuvajte račun kao dokaz o kupovini za reklamacije u slučaju garancije.





