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Proprietary production process allows us to make a disc that will not dissolve rapidly
No release of pollutants and fibres - fully synthetic
Prime also contains a binder which renders ammonia
bottom-dwelling fish that prefer dark substrates (the fine sand does not damage their skin)
No residual waste
Bulk Clear Filter Wool (1m x 25mm x 1m) Bag Freshwater Proprietary production process allows usGreat for Fresh and Salt Water Filters. Ideal for use in Canister Filters Pre Filters Mini Reefs Box Filters Aquarium Sumps This High Grade Filter Wool available as a 1m x 1m sheet or a 1m x 25m bulk roll. Perfect for Sumps, Canister Filters and anywhere that Mechanical filtration is needed. A perfect accompaniment would be to place this wool on top of Your Poly filter to prolong the life of the ever so popular Poly filter. The Biological Filtration