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GFO

What does GFO do exactly and why do I need it?

GFO or Grandular Feric Oxide (rust) is used in a fluidized media reactor to remove phoshates from your aquarium water.  Phosphate is the number one killer of aquarium coral and phosphate is also a major cause for algae blooms in our aquarium.  Just like weeds in a garden, algae used phosphate as a fertializer.  Controlling phosphates on a continual basis is one of the key elements to maintaining a beautiful saltwater aquarium.

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  • On Sale 15%
    Phosban (1200 gm Bucket) -  Two Little Fishies
    On Sale 15%

    Phosban (1200 gm Bucket) - Two Little Fishies

    Two Little Fishies

    $84.99
    $72.24
    Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances. Recommended by Julian Sprung for long-lasting and easy...
  • On Sale 15%
    Bulk Super GFO High Capacity Phosphate Reducer (1.5 lb)
    On Sale 15%

    Bulk Super GFO High Capacity Phosphate Reducer (1.5 lb)

    Kolar Labs

    $61.73
    $52.47
    This High Capacity GFO is the Original GFO Bayoxide E33.  All of the fines and dust have be prefilltered out to give you a heaver more effective product. High phosphate levels are a recipe for disaster in saltwater aquariums. It is a nutrient for...
  • On Sale 15%
    Bulk GFO Phosphate Reducer (2 lbs)
    On Sale 15%

    Bulk GFO Phosphate Reducer (2 lbs)

    Kolar Labs

    $56.69
    $48.19
    This GFO is the Original GFO Bayoxide E33. High phosphate levels are a recipe for disaster in saltwater aquariums. It is a nutrient for nuisance algae and also hampers the formation of calcium skeleton in corals. There are several different methods for...
  • On Sale 15%
    PhosBan (454 gm) -  Two Little Fishies
    On Sale 15%

    PhosBan (454 gm) - Two Little Fishies

    Two Little Fishies

    $59.23
    $50.35
    Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances. Recommended by Julian Sprung for long-lasting and easy...
  • Phos 0.04 Phosphate Remover (950g) - Fauna Marin

    Phos 0.04 Phosphate Remover (950g) - Fauna Marin

    Fauna Marin

    $49.99
    Phos 0.04 is a unique mixture of granular media that safely removes phosphates and yellowing compounds for the aquarium water!  Regardless of how much is used, phosphates will never crash out to zero.   A special feature is...