Crushed Corals- Calcium Reactor Media-11.99/500g

ReBorn Calcium Reactor Media 

The Two Little Fishies ReBorn is a coarse aragonite calcium reactor media made up of completely dissolvable fossil skeletons of reef building corals from the Western Pacific. ReBorn is designed to replenish calcium and carbonate alkalinity, strontium as well as trace elements to bring your aquarium back to its normal state, making you and your fish happy for a healthy and successful aquarium.