Granular Ferric Oxide

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    …reef aquarium.  The BRS GFO works great in filter socks and reactors.  For the price Standard Granular GFO is going to be one of the best values when it comes to GFO for phosphate removal. Granular Ferric Oxide (GFO) removes phosphate from the aquarium and is one of the most commonly used filtration…

    Starting at:
    $21.99

    …close to twice the phosphate as standard GFO by volume. We recommend this when you have a large tank or limited room in your media reactor. Granular Ferric Oxide (GFO) removes phosphate from the aquarium and is one of the most commonly used filtration media used in the aquarium industry.  GFO is one…

    Starting at:
    $44.99

    Overview Directly and efficiently removes reactive phosphate from aquarium water. Also removes silicate and phosphate-based organic material from aquarium water, often resulting in improved water clarity (particularly in aquaria with heavy bioloads). Safe for use in all freshwater and marine…

    Starting at:
    $14.99
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