1 Gallon ARM Reactor Media - Coarse - CaribSea

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    ARM Coarse Reactor Media contains calcium, carbonate, and trace elements.

    • Nearly 50x the Strontium of other brands (7390ppm)
    • Precision grading allows for maximum carbon dioxide penetration
    • No gastropod shells means the lowest phosphate content (less than 1/10th of 1ppm)
    • Highest solubility of any reactor media (metastable at 8.2)


    One of the most trusted media for calcium reactors in the industry. The media is a complete solution which includes both calcium and carbonate as well as essential trace elements.


    The media comes in two forms Coarse and Extra Coarse.

    • Coarse – larger size granules which are less likely to clog equipment.
    • Extra Coarse – Largest size granules and the least likely to clog equipment which results in the lowest maintenance option.


    Note: All ARM media is packaged by volume in a 1-gallon container. Weights may vary from container to container, but on average one gallon will yield 8 - 10 pounds of media.

    More Information
    Product Name 1 Gallon ARM Reactor Media - Coarse - CaribSea
    SKU 204104
    UPC 008479005298
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