Alfagrog is made of a highly porous material that contains many thousands of tiny pockets in which bacteria can thrive making in an ideal material for biological filters.
Why is Alfagrog so effective?
The key to effective biological filtration is choosing media with the highest surface area possible to allow beneficial bacteria to colonise and remove waste from the water. Alfagrog has an extremely high surface area by volume compared with other types of filter media on the market.
Lightweight
15 Litre Bag
Alfagrog can also be used as decorative aquatic gravel, aquarium landscaping and in a wide variety of applications.
