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Re: [APD] sand

To: aquatic plants digest <aquatic-plants at actwin_com>
Subject: Re: [APD] sand
From: Stuart Halliday <stuart at mytriops_com>
Date: Fri, 16 Sep 2011 10:05:33 +0100
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On 15/09/2011 20:54, RMGTBTS at aol_com wrote:



yes sand does not interact with H2O. Would not be a lot of beaches.


Since when?

Sand is mostly calcium carbonate, ie the dead shells of invertebrateanimals. Course it dissolves in water! It is what gives water GH and KH. :)



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Stuart Halliday
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200 Million years in the making...
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