Continuum Aquatics Bact Rox L – Large Porous Biological Filter Media for Reefs Marine Saltwater Freshwater Aquariums and Ponds 500-ml

Bact Rox Large is an extremely porous filtration medium designed to be used in all aquariums and aquatic systems for bio-filtration. Each liter of Bact Rox provides over 7,500 square feet of surface area internally for bacterial colonization, providing for nitrification and vast amounts of anaerobic or anoxic surface area to foster denitrification. Bact Rox will reduce the levels of toxic ammonia, nitrites and nitrates, as well as phosphates and organic pollutants in all aquaria. It may be used as your primary or only bacterial filtration medium. It works extremely well in nano aquariums, as well as systems of all sizes. It is particularly well suited to reef systems with live rock including FOWLR systems and will not foster problems that bio balls may. Use in a canister filter, reactor, or other type of aquarium filter with good water flow. Works well submerged or in a drip system.