p and k

Dutch Passion Lemon Z
  1. Fitzy

    Which deficiency?

    Am having an issue with some cal mag def but not 100% that's wat it is so if anyone has any ideas I've been using advanced 3 part organic @400ppm and 200ppm of cal mag for feed sometimes I put a bit less base nute and add a bit of kelp me kelp u thanks for any help in advance
Dutch Passion Lemon Z
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