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Thread: Crushed glass?

  1. #9
    Cthulhu138's Avatar
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    Growstone, which is made from recycled glass has come out with a product for fungus gnat control that can be used in place of coarse sand.

    Gnat Nix Fungus Gnat Control by Growstone | Growstone

  2. #10
    Axelrod12's Avatar
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    I don't have any experience with the crushed glass sands. But as far as sandblasting sand, there is also black diamond blasting grit. That is made up primarily of coal slag which is inert, it's used in fish tanks as a substrate and doesn't effect the pH at all. The one thing to look out for is the grade. There are a few different ones from super fine to coarse.

  3. #11
    marcus_r's Avatar
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    Great, thanks, Cthulhu138 & Axelrod12!

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