The Planted Tank Forum - View Single Post - Nitrogen deficiency or ?
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post #9 of (permalink) Old 12-06-2012, 04:48 AM
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Join Date: Jan 2011
Location: Syracuse, NY
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Originally Posted by OVT View Post
My bad, backing soda increases pH, sorry about that. As others said:
Per that article:

"Calcium chloride also does the trick safely and inexpensively, but calcium chloride is not readily available in local stores. But you can buy it from chemical supply stores. "

Prestone Heat (in fact, all those beaded white ice melts) are calcium chloride. Prestone is used because it's been determined to be relatively pure. I use Ball Pickle Crisp Granules, because it comes in sane volumes and I rarely need to use it being that I live in liquid rock Upstate NY.

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