I've been running a reef tank for about five years now and just do 2-part dosing for calcium and alkalinity (currently about 280ml of brs 2-part a day). I have 5 gallon reservoirs so I only have to mix it up every three months or so. I buy the big 5 gallon containers so cost is not too bad. Is there any reason to switch to a calcium reactor? Is it better in any way for the health and growth of your corals?