Two Little Fishies ReMag Reactor Media for Aquariums is a naturally occurring magnesium-rich stone that is sized to blend well with ReBorn and other calcium carbonate media for use in calcium reactors. Maintaining the magnesium level in your reef is a piece of cake with ReMag. Simply use ReMag in a calcium reactor as directed to supply the magnesium your corals require. It not only saves you time and money, but it also gives you more reason to enjoy watching your corals grow.
