Sera Siporax Professional 500ml

This, the original Sera Siporax biological filter media, is suitable for use in both freshwater and marine aquariums as well as in ponds. With 270 sqm of surface area per litre, this high-performance media maximizes the surface available for biological purification and provides the optimal substrate for the settling of necessary filter bacteria. Available in 500ml, 1L and 10L packs.