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Old 12-07-2011, 06:13 PM
Leon71 Leon71 is offline
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FYI. Silica sand is a health hazard, but only when inhaled. The process of sandblasting basically pulverizes the sand into dust. That's when it is bad. No dust when its wet. I have course sand (Sil#9) in all of my freshwater tanks and no problems.
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