EHEIM SUBSTRAT PRO FILTER MATERIAL 2000ml

Bio-filter material for highest biological degradation.

After the mechanical filtration with sponge, Eheim SubstratPro is absolutely perfect for optimal colonization of the bacterial culture.
The large filter surface, which is as much as 450 m²/ltr. provides maximum bacterial culture which ensures clear, clean water and stable water values and a longer service life between filter cleanings.