1. المقدمة
The JBL FilterPad VL-120/250 is a high-quality cotton fleece filter media designed for use with JBL CristalProfi aquarium filters. It provides effective mechanical and biological filtration, contributing to clear and healthy aquarium water. This product is specifically cut to size for JBL CristalProfi 120 and CristalProfi 250 models.

Image 1: JBL FilterPad VL-120/250 product packaging, showing the brand 'JBL UniClear' and compatibility with CristalProfi 120 and 250.
2. دليل التثبيت
Follow these steps to correctly install the JBL FilterPad VL-120/250 into your aquarium filter:
- تحضير: Ensure the aquarium filter is turned off and disconnected from the power supply before beginning installation.
- مرشح الوصول: Open the filter housing according to the specific instructions provided with your JBL CristalProfi filter model.
- Remove Old Media: Carefully remove any old or used filter media from the designated compartment.
- Insert New FilterPad: Place the JBL FilterPad VL-120/250 into the appropriate filter basket or compartment. Ensure it fits snugly without obstructing water flow or causing any deformation.
- مرشح آمن: Close the filter housing securely, ensuring all seals are properly seated to prevent leaks.
- إعادة توصيل الطاقة: Reconnect the filter to the power supply and turn it on. Monitor for proper operation and any signs of leakage.
3. مبادئ التشغيل
The JBL FilterPad VL-120/250 functions through a dual filtration process:
- الترشيح الميكانيكي: The fine cotton fleece material effectively traps suspended particles, debris, and other impurities from the aquarium water. This physical removal of particulate matter contributes to water clarity.
- الترشيح البيولوجي: The porous structure of the fleece provides a significant surface area for beneficial nitrifying bacteria to colonize. These bacteria play a crucial role in the nitrogen cycle, breaking down harmful ammonia and nitrites into less toxic nitrates.
4. الصيانة
Regular maintenance of your filter pad is essential for optimal aquarium health.
- تقتيش: Regularly inspect the filter pad for signs of heavy soiling or clogging.
- تردد الاستبدال: Replace the filter pad when it appears heavily soiled, discolored, or when water flow through the filter significantly decreases. Replacement frequency typically ranges from every 1 to 4 weeks, depending on aquarium stocking levels, feeding habits, and overall bioload.
- إجراء الاستبدال: To replace the filter pad, follow the installation steps outlined in Section 2 in reverse order.
- تصرف: Do not rinse and reuse heavily soiled filter pads, as this can release trapped pollutants and debris back into the aquarium water. Dispose of used filter pads responsibly.

Image 2: A single JBL FilterPad VL-120/250, showing its white cotton fleece material and pre-cut shape.
5. استكشاف الأخطاء وإصلاحها
If you encounter issues with your filter system after installing the JBL FilterPad, consider the following:
- انخفاض تدفق المياه: If the water flow from your filter is significantly reduced, check if the filter pad is clogged. Replace the filter pad if it is heavily soiled. Also, ensure that the filter is properly assembled and all connections are secure.
- المياه العكرة: If your aquarium water remains cloudy after filter pad replacement, it may indicate other issues. Check other filter media (e.g., biological or chemical media) for cleanliness and effectiveness. Additionally, test your aquarium's water parameters (ammonia, nitrite, nitrate) to identify potential imbalances.
6. مواصفات المنتج
| مواصفة | التفاصيل |
|---|---|
| ماركة | جي بي ال |
| نوع الحيوان الأليف | سمكة |
| أبعاد المنتج | 18.5 × 3.5 × 23 سم |
| رقم موديل العنصر | 6220100 |
| تكوين المواد | الألياف الاصطناعية |
| لون | أبيض |
| التوافق الحجمي | For CristalProfi 120/250 (also listed as For CP 500 in some specifications) |
| Number of Items (per pack) | 2 |
| وزن العنصر | 21 جرام |





