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Alfagrog Filtration Medium 16kg Bag
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Alfagrog is a Volcanic rock and has been used now for several years with a great deal of success.
Alfagrog has a very high surface area making it an ideal material on which beneficial bacteria (Nitrosomonas and Nitrobacter) can colonize leading to increased biological filter performance
How it comes:
- In 16kg Bags (Large Pieces)
*Additional delivery charges may apply to the following destinations: Isle of Wight, Isles of Scilly, Northern Ireland, Republic of Ireland and Scottish Highlands. Please contact us for a customised delivery quote.
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