yellowing on leafs

  1. A

    Is this a nutrient toxicity or deficiency?

    Hey everyone, I'm having some issues with a couple of my plants. I'm not sure if this is excessive nutrients or is it a lack of nutrients? I'm using general hydroponics 3 part nutrient mix. I've fed each of them around 3 times. Each time, I watered/fed each plant with 1 gal distilled water...
  2. C

    Yellowing please help identify!

    Two leafs have this weired yellow on them, should I start feeding it nutes? I have fox farm ocean Forrest , the bottom two leaves ( you can see one 1 The picture) turned yellow and died off anyone know why?.... Iv been trying to get it to flower for over a week now on a 12/12 light cycle and...
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