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Re: Aquatic Plants Digest V5 #1

In a message dated 4/1/02 3:55:40 AM Eastern Standard Time, 
Aquatic-Plants-Owner at actwin_com writes:

<< Date: Sun, 31 Mar 2002 13:23:00 -0700
 From: Roger Miller <rgrmill at rt66_com>
 Subject: Re: Aquatic Plants Digest V4 #1738
 On Sunday 31 March 2002 13:48, Tom wrote in reply to Wright:
 > "That Texas sand-blasting sand has a very good reputation. Mostly granite,
 > I suspect."
 > No, all quartz - silicon dioxide, or silica. And it makes an excellent
 > substrate when used with laterite. $6 for 50 pounds at the LFS. I hear that
 > it's also sold for use in swimming pool filters.
Does anyone know where to buy dark brown or black sand? I like a dark 
substrate but the only black sand i can find is probably dyed that color.