how do i lower ph?

Discussion in 'Growing Marijuana Indoors' started by specialk916, May 13, 2010.

  1. any all natural tips on lowering my ph?
  2. Lemon Juice
  3. Distilled white vinegar has a pH of 2.4 and lemon juice has a pH of 2.2.

    This time of year you can buy dry pH down from Walmart or Lowes, look in the pool cleaning/spa section. Pretty cheap but I've never used it and don't know how to mix it.
  4. If it's soil you are using, try mixing in dolomite lime next grow. It's a natural ph buffer.

    Then again you could also get hydroponic ph up and down - it is so concentrated i only end up adding one or two drops to a gallon of water/ferts to balance pH.

    Coffee grounds can also lower your pH - just use it as a top dressing.

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