ARM Reactor Media - Coarse, 1 gal. Fish - Nemateleotris and fine grains are both

and fine grains are both fish and root friendly

It's a easy way to get high light loving corals closer to the lights and at the same time create a darker area undernath for lower light inverts like some hammer corals and frogspawn

dump reactor contents into 5-gallon bucket with tank water

Red Fromia Starfish

ARM Reactor Media - Coarse, 1 gal. Fish - Nemateleotris and fine grains are bothCalcium reactors have evolved into several types that require different media sizes. Because of this we now offer ARM Coarse for rapid upflow type reactors that have become so popular. This coarse grade of ARM will prevent the clogging and upkeep associated with fine media and these reactors.