The Planted Tank Forum - View Single Post - Flourite capped with Black sand?
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post #2 of (permalink) Old 03-18-2013, 04:48 AM
Algae Grower
Join Date: Jul 2007
Location: Nashville, TN
Posts: 123
Sand will slowly migrate to the bottom and the larger particles will come out on top. Lucky for you there is a literal "flourite black sand" product.
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