<h2>CARIB SEA INC - CARIB SEA REACTOR ARM COARSE 1 GALLON</h2><p></p><p>ARM&#153; Fine &#045; has nearly 50 times the strontium of other brands &#040;7390 ppm&#041;&#046; It also contains 381,000 ppm Calcium, 590,000 ppm Carbonate, and 1050 ppm Magnesium&#046; ARM&#153; has the highest solubility of any reactor media available &#040;metastable at 8&#046;2&#041; so typical CO2 consumption is much lower&#046; </p><ul></ul>