Juwel Cirax Bioflow
JUWEL Cirax are highly porous ceramic-based pellets which, due to their extremely large surface area, create the perfect environment for bacteria. In your JUWEL filter, Cirax helps to ensure excellent water quality.
Using a special basket, tailored to the size of your JUWEL filter, makes it easy to use, whilst the optimised filling quantity means a long service life of up to a year.
Characteristics of JUWEL Cirax
| Feature | Description |
|---|---|
| Excellent water quality due to effective biological cleaning | Supports beneficial bacteria that break down waste |
| Extremely large surface area due to highly porous filter material | Provides ample surface for bacterial colonization |
| Suitable for use in freshwater and saltwater aquariums | Compatible with both freshwater and marine setups |
FAQ
Can I use JUWEL Cirax Bioflow in both freshwater and saltwater aquariums?
Yes, JUWEL Cirax Bioflow is suitable for use in both freshwater and saltwater aquariums.
How long does the filter media last before needing replacement?
The optimised filling quantity ensures a service life of up to a year with proper use.
Is the Cirax material safe for fish and aquarium inhabitants?
Yes, the ceramic-based material is non-toxic and safe for fish and aquatic life.



Richard Payne –
I’ve used Cirax Bioflow in my freshwater tank for six months now. The water clarity has improved significantly. It’s easy to install and the filter maintains good performance without clogging.
Katherine Edmunds –
The porous structure works well for bacterial growth. I noticed less fish waste in the water after adding the filter. It fits perfectly in my JUWEL filter basket.
Connor Hill –
Great product for maintaining stable water conditions. Works well in both freshwater and saltwater setups. Long-lasting and effective.