Eheim bioMECH Size:686g It's also possible to define

It's also possible to define a break at midday at the desired time of day and light intensity

crystal-clear pond water

The result is clearly improved water quality and viewing depth through direct suction removal of pollutants on the surface

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Eheim bioMECH Size:686g It's also possible to defineEHEIM bioMECH Mechanical biological filter medium for combined water treatment bioMECH has been cleverly designed: dirt trapping pockets capture and retain large and small dirt particles. At the same time the subtely designed pore structure provides colonisation for the purification bacteria and thus ensures reliable biological decomposition. The material is pH neutral and does not contain water hardeners. EHEIM bioMECH is suitable for fresh and