How come my Ca++ does not go up. I have been adding KW as make up water. And using Kent's Liquid Calcium as the bottle says " 5cc/50 gallons" i think that is what is says. Anyways my tank is a 29 gal, so i dose 3 cc once per week, have been using for 3 weeks, with CC some small pieces of SPS and buttons and xenia. I use Saltifert's Ca++ test and get numbers like 250-280. I dont use RO/Di water cause i can't spare the cash now. Any one have any ideas, it would be greatly apperciated. :lol: