<p>&#035; 00525 &#045; 1 Gallon</p><p>A&#046;R&#046;M&#046; Aragonite Reactor Media from CaribSea</p><p>A&#046;R&#046;M&#046; Yourself Against Phosphate</p><p> A complete reactor media containing not only calcium and carbonate, but essential trace elements as well&#046; In fact A&#046;R&#046;M&#046; has nearly 50 times the strontium of other brands (7390 ppm)&#046; A&#046;R&#046;M&#046; is processed for immediate use, no rinsing required, and has double the surface area of regular aragonite&#046; Precision grading (2&#045;3mm) allows for maximum carbon dioxide penetration, and the exclusion of gastropod shells insures the lowest phosphate (less than 1&#047;10 of 1 ppm)* and silica (about 1&#047;2 that of other brands) content&#046; This grading also carries in the highest concentration of Halimeda incrassata, an aragonite so pure it has been used as a laboratory standard&#046; A&#046;R&#046;M&#046; has the highest solubility of any reactor media available (metastable at 8&#046;2) so CO2 consumption is much lower&#046;</p>