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How to Get Killer Yields

Discussion in 'Indoor Growing' started by bcnl_joyce, Nov 4, 2014.

  1. James Marsden

    James Marsden Well-Known Member

  2. Farmer G

    Farmer G New Member

    Change from HPS to MH for the last 2 weeks with every grow? What does that do? Not doubting you just want to learn Thanks!

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