Two Little Fishies ReBorn Calcium Reactor Media is a premium coarse aragonite media designed to replenish vital calcium, carbonate alkalinity, strontium, and other trace elements in saltwater reef aquariums. Composed of fossil skeletons from sustainably harvested reef-building corals in the pristine Western Pacific, this media dissolves efficiently within your calcium reactor to support healthy coral growth and maintain stable water chemistry.

ReBorn's coarse granule size is specifically engineered to facilitate unrestricted water flow and optimal diffusion of carbon dioxide within the reactor, ensuring maximum efficiency and easy maintenance. Unlike inferior media, ReBorn dissolves completely without turning into a mushy residue, preventing clogs and maintaining consistent performance. Each bulk box contains 20 kg, equivalent to 44 pounds, of high-quality calcium reactor media.

This product is an excellent choice for dedicated reef aquarists utilizing calcium reactors to automatically sustain crucial water parameters for their corals and invertebrates. It is ideal for those seeking a reliable, high-purity media that ensures consistent calcium and alkalinity delivery without the hassle of frequent adjustments or media degradation. ReBorn's sustainable sourcing and superior dissolution properties make it a responsible and effective solution for long-term reef tank health and stability.