CaribSea A.R.M. Reactor Media Coarse 1 Gallon 00529 CaribSea A.R.M. Aragonite Reactor Media with Essential Trace Elements Coarse 1 Gallon Customer Rating  N/A Add Review Ask Question $41.95 Qty : < > Product Description Reviews (0) (View All) Questions (View All) CaribSea A.R.M. Aragonite Reactor Media is a complete reactor media containing not only calcium and carbonate, but essential trace elements as well. CaribSea A.R.M. Coarse is designed for rapid upflow type reactors . This coarse grade of A.R.M. will prevent the clogging and upkeep associated with fine media and these reactors. Features: Highest solubility of any reactor media Lower CO2 consumption No phosphates or silicates Graded and processed for immediate use, no rinsing required 1 Gallon Add Review There are no reviews for this product. Ask Question There are no questions asked for this product. Ok