I'm been dosing for two years with two part doser. Calcium went to 600 where it usually 450. Alk level is 8.3. Been adding equal parts 65ml a day of Alk and Cal. Never add Mag where levels at 1350 steady. 30 SPS some medium and some frags. Also One 2inch clam. Question, I just made a new batch of Cal from BRS individual packs which are measure to make one gal. Is it possible the pack was stronger for one gal mix. Or is it possible the doser adding more than it measuring. When I hear doser come on It barely runs for 8 secs. So was just wondering why Cal went from 450 to 600 in few days. I test 2x a week. Both Cal and Alk...did I miss something? Now I going to mark top off jugs everyday and see if both are using same amount. Been two days and still disconnected CAl and levels still same. Used salifert test and two different boxes both reading same. Just tested my WC which calcium levels are 500. But the thing about that I haven't done in 3weeks. Any thoughts..?