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The EHEIM SUBSTRAT 830g is a high-performance biological filter media made from highly porous sintered glass, designed to provide optimal conditions for beneficial nitrifying bacteria.
Its structure offers an extremely large colonization surface of around 450 m² per liter, ensuring highly efficient biological filtration.
It works after mechanical filtration, playing a key role in breaking down ammonia and nitrite to maintain stable, healthy aquarium water.
The media is reusable and can be gently rinsed without losing performance.
✔ High surface area biological media
✔ Efficient ammonia and nitrite reduction
✔ Long-lasting and reusable
✔ Suitable for freshwater and marine aquariums
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