CaribSea ARM Reactor Media-Extra Coarse 50lbs

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  • Regular price $229.00
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ARM Extra Coarse Reactor Media contains calcium, carbonate, and trace elements.
Nearly 50x the Strontium of other brands (7390ppm)
Precision grading (2-3mm) allows for maximum carbon dioxide penetration
No gastropod shells mean the lowest phosphate content (less than 1/10th of 1ppm)
Highest solubility of any reactor media (metastable at 8.2)