Biological filter media

The main task of the biological filter material is to provide the best settlement conditions for bacterial cultures, so that a bacterial lawn develops after a short time. The bacteria feed on dirt particles of all kinds and convert the substances that are critical for the aquarium.

After the first cleaning with mechanical filter masses (e.g. EHEIM MECH or MECHpro), biological filtration is the most important thing. It ensures clear, healthy water and stable water parameters. That is why we have invested a lot of research into the development of biological filter media.

Tip:
Never clean or replace the entire biological filter material in one go (and never too thoroughly). The bacterial cultures must not be completely destroyed, otherwise resettlement will be delayed. The filter baskets in external filters and the filter modules in the aquaball and biopower internal filters are ideal for partial cleaning.

EHEIM SUBSTRATEpro

Optimized bio-filter medium with perfect volume utilization, long service life and maximum degradation performance

SUBSTRATpro consists of spherically sintered quartz. The spherical shape allows a high bulk density. In this way, the volume in the filter (filter baskets or modules) can be fully utilized. In addition, the optimized surface of the beads ensures intensive colonization of the important cleaning bacteria. A dense bacterial lawn forms.
The high number of bacteria also reduces nitrite load peaks and extends the service life of the filter material.
EHEIM SUBSTRATpro is suitable for fresh and sea water, can be washed out and used several times.

• Optimized bio-filter medium made from sintered quartz
• High bulk density due to spherical shape (beads)
• Very dense bacterial colonization
• Longer service life
• Better breakdown of nitrite exposure
• Can be used several times (rinse carefully to clean)
• Suitable for fresh and sea water