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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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  • Phosban (1200 gm Bucket) - Two Little Fishies

    Phosban (1200 gm Bucket) - Two Little Fishies

    Two Little Fishies

    $172.16
    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...
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  • On Sale 10%
    Bulk GFO Granular Ferric Oxide - High Capacity (1 Gallon) - Bulk Reef Supply
    On Sale 10%

    Bulk GFO Granular Ferric Oxide - High Capacity (1 Gallon) - Bulk Reef Supply

    Bulk Reef Supply

    $286.64
    $257.98
    Phosphates are going to be one of the biggest battles we have with a reef aquarium.  The BRS GFO works even better in reactors due to it being denser than most other GFO.  The price is just about double of standard GFO however you only need to...
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