ph reading

  1. P

    I need some clarification on PH and meter reading

    These questions may seem elementary but the more I read the more confused I am getting. I have grown 3 grows of bag seed. I'm currently in my 5th week vegging DP White Widow fems. Questions: I am growing in ProMix-BX, a peat based mix from AGWAY. Is this considered Hydro or Soil for...