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Showing results for tags 'CalMag Deficiency'.
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High guys, I am new here so hopefully I don't mess this up. Also pleased to meet you! Currently Vegging with 400w MH soon to change it to 400w HPS and then 600w HPS for flower. Veg time will be long at about 8 weeks. Hericules Top left Hericules, Top centre BLZ, Top right Lemon Amnesia, Bottom left and center Super Lemon Haze, Bottom right, Lemon Amnesia This is what I use for now, will go organic next time round. SLH okay looking roots. Just a quick pic of my last harvest of a Northern Lights x AK...... PURPLE! Poorly plant. Please help! As you can see I have a problem with lower leaves going yellow and rust spots on two plants. I thought maybe this was a Calcium or Magnesium deficiency as my water is very soft here, 46mg/L of calcium carbonate according to my water company which means I am below the 'very soft' scale. What do you guys think could be causing this?