Exxodus•Phosphyx is an extremely porous filtration medium designed to be used in all aquariums and aquatic systems for chemical filtration (phosphate & silicate removal) as well as bio-filtration. It literally has the highest surface area of any filtration medium in the world, by far, yet it provides excellent flow characteristics! Each liter of Exxodus•Phosphyx provides over 26,000 square feet of surface area internally for bacterial colonization and even more vast surface area due to GFO spicule and "fur" formation during the ceramic formation.
Exxodus•Phosphyx is unique in that it is doped with GFO (ferric oxyhydroxide) which is bound in the material as well as coated onto all the vast surface area and acts to remove unwanted phosphate and silicate from aquarium water more efficiently than any other known material. 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. Use in a canister filter, reactor, or other type of aquarium filter with slow to moderate water flow. Do not fluidize because the product may grind down or release particles into the aquarium due to mechanical action. It should be subjected to a low and non-turbulent flow rate, if possible.