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  1. 1

    Vermiculite as a source of silica?

    It's on my list to buy today, thank you, and happy growing.
  2. 1

    Vermiculite as a source of silica?

    Thanks for posting that, I saw the same link saying vermiculite adds very little silica to soil yet Bugbee says it's a great source of silica, was going to buy it for silica but don't need or want water to be retained (I use perlite now) but would love to know what the truth is, Bugbee also said...
  3. 1

    pH up & down concentrate dilution method or ratio ?

    I saw you having Tap water with 0 ppm, is that even possible?
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