Find Reviews and Compare Prices for:       All ProductsCalcium Reactors     3.0 (2)   Add a review CaribSea ARM Aragonite Reactor Media   ARM Fine by Caribsea. Aragonite Reactor Media ARM: Available in Fine for down-flow, slow up-flow, or fluidized bed type calcium reactors and Coarse for rapid up-flow type reactors. Have a question? Just Ask! Member Reviews Compare Prices Send to a friend Set Price Alert Searched CaribSea ARM Aragonite Reactor Media in 150 stores, 2 results found Image Description   Store   Price Carib Sea A.R.M Aragonite Reactor Media If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   2 Store Reviews   $14.76 Go to Store A.r.m. Reactor Media 1gal (8lbs) If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   2 Store Reviews   $39.95 Go to Store You can also search these stores   Find this product on eBay   eBay   5 Store Reviews   Search on eBay Are we missing a store? Let us know! Something wrong in this page? Let us know! Related products: More Calcium Reactors Calcium Reactors Other Calcium Reactors