There has been about 3 percent sand accidentally spilled into the mixture but that will settle to the bottom fairly fast and will not notice it.
This flourite substrate was used just under 8 months and has been dried for 3 months.
Flourite Dark is a specially fracted stable porous clay gravel for the natural planted aquarium. Although it may be mixed with other gravels, Flourite Dark is best used as an integral substrate bed. Any mixture should be at least half flourite.Flourite Dark is not chemically coated or treated, and will not alter the ph of the water.
Big als sells for $24.99 for a 15 pound bag without taxes