Eheim Substrat Pro

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Eheim's new superior biological media that improves and optimizes the performance of Ehfisubstrat. It is for highly active water purification with intensive biological decompositio n of harmful substances. For use in all canister filters. Can be used in all applications like in any filter system, extra media for wet/dry sumps and in power filter media containers. It can also be used as a replacement media for the Eheim AquaBall. It is pH & KH neutral so it does not affect the water chemistry. It has a larger pore structure to ensure optimum bacterial colonisation and delays the silting-up of the pores (for much longer intervals between cleaning). Show more