A.R.M. Reactor Media Coarse 1 gal / 3.78L

Calcium reactors have evolved into several types that require different media sizes. Because of this we now offer ARM^TM Coarse for rapid upflow type reactors that have become so popular. This coarse grade of ARM^TM will prevent the clogging and upkeep associated with fine media and these reactors. Works with many Tunze, Precision Marine, Korallin, Schuran, Coralife, Knop, Coral Vue, Vorex , Octopus, and Pacific Coast reactors.