Biological Filter Media
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Standard bio-filter medium with large colonisation area for bacteria cultures and high efficiency
SUBSTRAT can be layered in one or more layers. It is a highly porous filter material made from sintered glass. The surface structure offers the important purification bacteria excellent colonisation conditions. The colonisable area amounts to 450 m² per litre.
EHEIM SUBSTRAT is suitable for fresh and marine water, is washable and can be reused.
Never clean or change all the filter media together in one operation (and never clean too rigorously). The bacteria cultures must not be completely destroyed, otherwise re-colonisation will be retarded. The filter baskets in the external filters and filter modules in the internal filters aquaball an biopower are ideal for partial cleaning.