Trailermann Posted December 30, 2017 Share Posted December 30, 2017 I am adding alkalinity solution every day in my 30 gallon mixed reef. The rocks and sand are very well established. Yet the calcium is staying high. I keep waiting for the calcium to start dropping in tandem with alkalinity so I can start up my calcium reactor. What gives? Quote Link to comment Share on other sites More sharing options...
xmas_one Posted December 30, 2017 Share Posted December 30, 2017 (edited) Maybe your test kit is fubar, maybe something else. I would suggest just firing up the reactor and monitoring alk. The calcium will be there if the reactor is keeping the alk consistent. 30g is kind of small for a reactor, have you considered dosing two part with a doser? Edited December 30, 2017 by xmas_one Quote Link to comment Share on other sites More sharing options...
Higher Thinking Posted December 30, 2017 Share Posted December 30, 2017 How long have you been tracking your parameters? There are only a few rare instances where calcium and alkalinity would not drop at their respective ratios. I can't remember off the top of my head, but it's like 2.5 kh drop in alkalinity for every 20 parts for calcium. So you aren't going to notice the calcium drop as easily as you will notice the alkalinity. If you're dosing, I would be adding the correct portions of both. Sent from my SM-G955U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Gil&Fin Posted December 30, 2017 Share Posted December 30, 2017 Test your mixed RODI (after the salt is added) to see what the parameters are. If the calcium is high and you are doing regular water changes, that may be the culprit. I'm not sure that is likely, but it is something to rule out. Quote Link to comment Share on other sites More sharing options...
Trailermann Posted January 2, 2018 Author Share Posted January 2, 2018 That you all for the support. I am exploring your suggestions, and know I will figure it out. Quote Link to comment Share on other sites More sharing options...
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