pH adjustment

Discussion in 'Growing Marijuana Indoors' started by jackedinpdx, Oct 27, 2014.

  1. Quick question on water pH adjustment. Short on funds and have some spa adjusters. pH increase contains Sodium Carbonate, decrease contains Sodium Bisulfate. Safe for plants??? Thanks
  2. I've heard of it being used in ponds and aquariums, not sure about weed. A pH control kit doesn't cost much...

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