Easily and efficiently maintain your calcium reactor with Two Little Fishies ReBorn Calcium Reactor Media. It is composed of sustainable harvested fossil skeletons of reef building corals from pristine sites in the Western Pacific region.
When properly dissolved, this product will replenish carbonate alkalinity, calcium, strontium and trace elements. The large and coarse size of this media allows for better water flow and easier diffusion of Carbon Dioxide, and will completely dissolve leaving nothing behind.

Product Includes: 1 x 8.8 lb bag