The heart of a filter is its filter sponges: Filter sponges not only complete classic filtration, but also offer the smallest bacteria a lot of living space. This biological oasis in the filter sponges ensures that the toxins produced in the pond are converted: In the blue sponges toxic substances are converted into harmless algae stimulating substances (nitrification), which in turn are converted into naturally occurring gases in the red sponges (denitrification).
These sponges are for Oase ProfiClear pond filters. Available as narrow blue, wide blue and red. Suitable for all ProfiClear filter foam modules.
- Significant load capacity with high dimensional stability
- Constant and regular water flow thanks to a fixed pore size
- 100% compatible with animals, plants and microorganisms
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