The Planted Tank Forum - View Single Post - Wanting to try sand
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post #9 of (permalink) Old 07-07-2012, 09:51 PM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
Pool filter sand isn't necessarily white, or any other color. It is whatever color the reasonably local non-carbonate sand quarry produces. Mine is multi colored, sort of light tan in overall look. Some months ago someone reported that their local pool filter sand was black flint sand, as I recall, but black in any case. And, some newer pool filter sands are made of zeolite, some of which is a sickly green color.

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