CaribSea ARM Extra Coarse Calcium Reactor Media – 1 Gallon aquariums sand Ideal for marine and reef

Ideal for marine and reef aquarium systems

providing comfort for those long hours spent in front of your tank

iodine-free coral and frag dip designed for professional reef keepers and serious hobbyists

Sodium (Na)

CaribSea ARM Extra Coarse Calcium Reactor Media – 1 Gallon aquariums sand Ideal for marine and reefMaintain stable calcium and alkalinity levels with CaribSea ARM Extra Coarse Calcium Reactor Media 1 Gallon, a high performance reactor media designed specifically for calcium reactors. Engineered for rapid upflow reactors, this extra coarse media allows efficient dissolution while maintaining excellent water flow through the reactor chamber. The larger grain size helps prevent clogging, significantly reducing maintenance time compared to finer media.