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Date: Fri, 25 Apr 1997 08:40:06 +0000
From: Bill Ruff <bruff at lcse_umn.edu>
Subject: silica sand
>The silica sand is from Menard's (our local discount superwarehouse, we
>carry everything lumberyard.) It was $3-4 per 100lb. bag and one bag was
>more than enough for a 70gal to a depth of about two inches.
>I'll tell you right now with two inches of silica sand there is
>absolutely no leakage. Even when I plant the plants the sand fall downs
>around my finger as I push them in and no soil is realeased. It works
>100% better than I expected! Another caution though, I would experiment
>with a minimum amount of sand to seal in the dirt. Some crown plants can
>not be buried to deep and won't reach the soil. There roots may
>eventually grow down to it but you may wnat to use less than two inches
>of sand. I'm pretty sure 1 to 1.5 inches will work just as well.
Bill, how do you vacuum with a sand substrate? Are there any problems?
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