calcium reactor

[leesanhua]

can someone tell me what calcium reactor is? i been reading some articles but they all confuse me.

 

[tecwzrd]

A calcium reactor offers a simple and convenient solution for maintaining calcium and alkalinity in your reef tank. If you don’t have a reef tank with high calcium demanding corals like SPS then it’s not really needed IMO.

Best article I’ve read on the subject is this one on Liveaquaria.

HTH