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post #1 of (permalink) Old 10-16-2012, 03:46 AM Thread Starter
aznrice247
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Would this be considered a good way to raise hardness?

So I stumbled across this awhile ago and I wasn't sure if this really is a good way to raise the GH. Considering there are many commercial products that are out there.

http://www.shrimpfanatic.com/2009/05...um-buffer.html
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