magnesium deficiency

  1. M

    Magnesium deficiency mephisto

    Hi, I hope someone can help me. I'm growing mephisto under 50w cob lights. In Coco/perlite mix and feeding all canna nutrients. I think my problem is a magnesium deficiency which I keep getting just as they move into flower. I use calmag each feed at 1ml per liter minimum up to 1.5ml. If anyone...
  2. D

    New Grower Should I use CAL-MAG?

    I think I may have a magnesium deficiency, but I need some clarification before I decide to feed with CAL-MAG plus... Strain: Blueberry Bliss I am towards the end of week 5 and vertical growth has pretty much stopped. My soil-less medium (Sunshine Mix #4) is just about dry and today is...
  3. C

    Indoor Can a magnesium deficiency kill a plant?

    Just wondering how long i have before my plant completely dies from lack of magnesium? Im about 2 weeks since light flip and one plant is missing mg and as a result phosphorus as well and because of that iron/zinc/copper as well. The plant won't take magnesium up it seems, how long will it...
Back
Top