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Eheim Substrat Pro 1l with a surface area of 450sqm/litre. Use in filters, sumps and canisters
EHEIM SUBSTRATpro Optimised bio-filter medium with perfect volume usage, long intervals between cleaning and top decomposition performance.
SUBSTRAT pro consists of pearl-shaped sintered glass. The spherical shape gives a high bulk density. Thus the whole of the volume in the filter (filter baskets or modules) can be utilised. Also the optimum surface of the beads provides intensive colonisation of the important purification bacteria.
Due to the high number of bacteria, peak nitrite loads are more easily reduced and the maintenance intervals of the filter material are longer.
