EHEIM SUBSTRATpro
Optimised bio-filter medium with perfect volume usage, long intervals between cleaning and top decomposition performance.
SUBSTRATpro consists of pearl-shaped sintered glass. The spherical shape gives a high bulk density. Thus the whole of the volume in the filter (filter baskets or modules) can be utilised. Also the optimum surface of the beads provides intensive colonisation of the important purification bacteria.
Due to the high number of bacteria, peak nitrite loads are more easily reduced and the maintenance intervals of the filter material are longer.
EHEIM SUBSTRATpro is suitable for fresh and marine water, is washable and can be reused.
| Feature | Description |
|---|---|
| Material | Pearl-shaped sintered glass |
| Usage | Bio-filter medium in filter baskets or modules |
| Water Type | Freshwater and marine water |
| Reusability | Washable and reusable |
FAQ
What are the benefits of using EHEIM SUBSTRATpro in a filter system?
The spherical sintered glass beads provide high bulk density, allowing full use of filter volume. The large surface area supports intensive bacterial colonisation, which helps reduce nitrite peaks and extends the time between cleanings.
Is EHEIM SUBSTRATpro suitable for both freshwater and marine aquariums?
Yes, EHEIM SUBSTRATpro is suitable for both fresh and marine water systems.
Can the substrate be cleaned and reused?
Yes, the material is washable and can be reused after cleaning.



Andrew Henderson –
I’ve used EHEIM SUBSTRATpro in my freshwater tank for six months. The filter runs more efficiently and I haven’t had to clean it as often. The water clarity has improved noticeably. It’s easy to rinse and reassemble.
Joanne Jackson –
Great product for both freshwater and marine setups. The beads stay in place well and the bacteria colonies are strong. I noticed a drop in nitrite levels after a few weeks. Very reliable.
Joshua Paige –
Works well in my marine tank. The filter maintains good performance even after several washes. Slight clumping after long use, but overall very effective.
Warren Russell –
I switched from a standard filter medium to SUBSTRATpro and saw a clear improvement in water quality. The filter lasts longer between cleanings, which saves time and effort.