FiltoClear Foam Set 20000/30000 - Oase

Filter sponges are the heart of a filter: they not only perform the classic filtration, but they also serve as a habitat for microbacteria. This small biological oasis in the filter sponges ensures the recycling of the toxic substances generated in the pond: in the blue sponges, the toxic substances are transformed into harmless but invigorating substances for the algae (nitrification), which are then transformed into natural gas in the black sponges (denitrification).

Key features:

• Supports extremely heavy loads, highly dimensionally stable
• Constant and even water flow due to fixed pore size
• 100% tolerated by animals, plants and microorganisms