40GallonReef Posted October 10, 2011 Share Posted October 10, 2011 So I am having a problem with my Alkalinity rising. I have been testing for a couple weeks now and usually it is about 8 - 10. I having been dosing small amounts of calcium to try and keep it above 400. I did a water change on Friday (10 %) and when I tested my KH on Saturday it was at 11. Then I tested it on Sunday and it was at 12. I tried to add a little more calcium ( I think it should make my KH go down, correct me if I am wrong) and no change. Please help. Thank you for the help. Quote Link to comment Share on other sites More sharing options...
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