and magnesium

  1. CharlieG

    Yellowing leaves on my first grow - Any concern?

    Strain - candy cane auto # of Plants - 3 Grow Type - Soil Grow Stage - flower Bucket Size - 3 Gallon Lights - 1 300w led and 1 600w led Nutrients - canna Flores just starting giving them CMX. Medium - canna terra professional. black peat, granulated peat moss and perlite. PH - water I try to...
  2. P

    Coming Back From the Brink

    I have switched from Humboldt Natural Grow to the Lucas Formula after completing a flush. My plants were showing cal, mag, zinc and iron deficiencies. How long will it be before they resume full and vigorous growth.