Hcuervo October 26, 2011 Share October 26, 2011 So I have three clear gallon containers of recipe 2 bulk reef supply Alkalinity, Calcium and Magnesium. I never used them after mixing and they have been in the closet for close to a year and a half. All the solutions look clear...no sediment. Should they be good to use? Link to comment Share on other sites More sharing options...
Origami October 26, 2011 Share October 26, 2011 If the calcium doesn't have precipitate at the bottom, you should be good to go. The other two solutions should be good, too. Link to comment Share on other sites More sharing options...
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