A biofilm of nitrifying bacteria grow on the surface of the beads to convert ammonia (NH4) into nitrite (NO2) and finally in nitrate (NO2)
- Surface area: 700 m2/m3
- Protective surface area: 625 m2/m3
- Dimensions: Ø 30 x 15 mm
- Density: 1.0 kg/m3
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