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  • Optimised bio-filter medium made from sintered glass
  • High bulk density due to spherical shape
  • Very dense colonisation of bacteria
  • Reusable
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The EHEIM SUBSTRATpro is an optimized bio-filter medium with perfect volume utilization, long service life and maximum degradation. It consists of spherically sintered quartz. The spherical shape allows a high bulk density. Thus, the volume in the filter can be fully utilized. In addition, the surface of the beads ensures intensive settlement of the important purification bacteria. It forms a dense bacterial lawn. Due to the high number of bacteria also nitrite pollution peaks are better reduced and the service life of the filter material is extended.

EHEIM SUBSTRATpro is available in 4 sizes (0,25 l, 1 l, 2 l and 5 l ). It is washable and reusable.


  • Highly porous material made of sintered quartz
  • Excellent conditions for bacterial cultures
  • Suitable for fresh and marine water
  • Reusable



Eheim stands for very good aquarium filters made in Germany. External and internal filters as well as filter pumps are only a few of the products manufactured by Eheim that are also suitable for planted tanks or aquascapes. The highest quality standards and innovative products will always be connected with the name Eheim for many aquarium enthusiasts.

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