Eheim Substrat Pro Biological Filter Media - 1 L

Standard bio-filter medium with large colonisation area for bacteria cultures and high efficiencySUBSTRAT 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 m