For BioTec 5.1/10.1 and BioSmart 18000/30000/36000.?The heart of a filter are its filter sponges: Red filter sponges have fine filtration properties because they develop their full function at a medium flow rate of the water.?This means that small dirt particles simply get stuck in the sponge during the flow and are thus removed from the pond water.?But filter sponges not only do the classic filtration, they also offer plenty of living space for the smallest bacteria.?This small biological oasis ensures the conversion of toxins in the pond: Toxic substances are converted into harmless substances that stimulate algae (nitrification), which in turn are converted into naturally occurring gases (denitrification).

Technical Data?