mechanical filter masses

Filtering takes place in different stages: 

At the beginning, before the water goes through the further purification process, the pre-filter masses MECH and MECHpro by EHEIM prove themselves.

FIX by EHEIM  is suitable as a separating layer between mechanical and biological filter media.

And for fine filtration at the end, before the water enters the aquarium again, the filter floss SYNTH by EHEIM is ideal.