EHEIM Substrat Pro Biological filter media is specially shaped to create a better water throughflow to provide longer intervals between required maintenance. Its open structure for enhanced water penetration provides better bacterial colonization.
- Made of highly porous artifiical sintered glass material
- Unbeatable surface area structure of 1800 sq ft per gallon
- Can be reused by lightly rinsing with aquarium water every 1 to 3 months and replaced every 3 to 6 months
- Provides longer intervals between required maintenance
- For use in all EHEIM filters (Classic, Ecco, Pro 3, Pro 3e)
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