Sera Crystal Clear Professional 12pcs Filter Medium
An advanced filter medium designed for superior mechanical filtration, the Sera Crystal Clear Professional captures tiny particles over 10 µm, including floating algae and debris, with high efficiency.
Utilizing patented 3D fiber technology, these durable filter balls maintain their shape and can be cleaned multiple times. After rinsing, they remain up to 80% reusable, reducing waste and maintenance costs.
Specifications
| Item | Quantity: 12 pcs |
|---|---|
| Filter Type | Mechanical |
| Particle Size Captured | Over 10 µm |
| Reusability | Up to 80% reusable after rinsing |
| Compatibility | Freshwater and saltwater aquariums; compatible with all filter systems |
| Recommended Pairing | Sera Siporax Professional biological filter medium |
FAQ
Can this filter medium be used in both freshwater and saltwater aquariums?
Yes, the Sera Crystal Clear Professional is compatible with both freshwater and saltwater aquariums.
How often should I clean the filter balls?
Clean the filter balls regularly, ideally every 2 to 4 weeks depending on tank conditions, and rinse them thoroughly with dechlorinated water.
Does this product work well with other filter media?
Yes, it works effectively when paired with the Sera Siporax Professional biological filter medium for optimal filtration performance.

Irene Payne –
The filter balls are very effective at trapping fine particles. I’ve noticed less algae buildup in my tank since switching to this medium. They hold their shape well and I’ve cleaned them twice already without losing efficiency.
Virginia Smith –
Great for mechanical filtration. The 3D fiber design catches small debris that other filters miss. I use it in a saltwater tank and it’s performed well even with high fish activity.
Paul Walker –
After using it for three months, I’ve rinsed the filter balls twice and they still perform as well as when new. Saves me from buying new filters regularly.
John Langdon –
Works well with my existing Sera Siporax biological filter. The combination provides balanced filtration and keeps water clarity high.