EHEIM Substrat Biological filter media excellent conditions for bacteria cultures (1liter, 2liter, 5liter)

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.
Standard bio-filter medium
Highly porous material made from sintered glass
Excellent conditions for bacteria cultures
Reusable (rinse carefully to clean)
Suitable for fresh and marine water
Tip:
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.