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magnesium deficiency?

Discussion in 'Sick Plants and Problems' started by Stunnawis, Oct 18, 2018.

  1. #1 Stunnawis, Oct 18, 2018
    IMG_7599.JPG IMG_7597.JPG IMG_7596.JPG
     
  2. #2 Vee, Oct 18, 2018
    more info on you part may well get the answer you seek

    dal!

    no mag def here ...
     
    • Agree Agree x 1
  3. #3 Stunnawis, Oct 18, 2018
    Supersoil made up of peat moss, perlite, neem meal, kelp meal, oyster shell flour, crab meal, alfalfa meal, humus, rock dust, the works. I was previously watering with city tap water (dechlorinated), but will be switching to RO water. The ph of the soil stays around 7 - 7.5, but I have read that this shouldn't be much of a problem in an organic soil.

    There appears to be some algae growing on the soil surface, maybe I overwatered?
     
    • Like Like x 1
  4. #4 After the shot, Oct 18, 2018
    Is there any compost or ewc in the "super soil"?
     
  5. #5 After the shot, Oct 18, 2018
    No need to switch to ro water either. As long as ph isn't crazy out of range
     
    • Like Like x 1
  6. #6 Stunnawis, Oct 18, 2018
    I added about 10 pounds of ewc to the soil mix for the previous grow, should still be some in there considering it was a small grow and I only used a small portion of the soil
     
  7. #7 Stunnawis, Oct 18, 2018
    I got the ro system mainly for drinking/cooking water, but figured I'd use it for the plants too. Would you advise against using ro on the plants?
     
  8. #8 Stunnawis, Oct 18, 2018
    Oh and the lighting is hlg 65 quantum board.
     

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