Nitrogen toxicity or genetics

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Dark green leaves, nitrogen toxicity??

  • ilgm northern lights auto
  • FF, ocean forest
  • 5 gallon smart pots
  • PH of Water 6.8, runoff 6.6
  • Indoor
  • Light system 1000 watt led
  • Temps; Day 72 f, Night 70 f
  • Humidity; Day 50%, Night 40%
  • Ventilation system; yes
  • Co2; none
    I’ve noticed my leaves getting darker on the bottom and I wasn’t sure if it was nitrogen toxicity or maybe just dark from genetics since these are VERY indica dominant. Nothing looks burnt and no leaf curl at all. I flushed them with 6.8 ph purified water just incase and no nutes in the last 5 days
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    Please let me know what you think!
    ilgm northern lights auto
    FF, ocean forest
    5 gallon smart pots
    PH of Water 6.8, runoff 6.6
    Indoor
    Light system 1000 watt led
    Temps; Day 72 f, Night 70 f
    Humidity; Day 50%, Night 40%
    Ventilation system; yes
    Co2; none
    I’ve noticed my leaves getting darker on the bottom and I wasn’t sure if it was nitrogen toxicity or maybe just dark from genetics since these are VERY indica dominant. Nothing looks burnt and no leaf curl at all. I flushed them with 6.8 ph purified water just incase and no nutes in the last 5 days
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I’m HAF, so forgive me if I’m wrong here. Everything looks good here. Lighter growth darkens as she grows. @Myfriendis410 @dbrn32 just double check. Lol

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It’s tough to measure pH of purified water. There’s nothing in it.

They look ok to me. It might just be the blurple lighting making them look dark. If there was nitrogen toxicity you’d start seeing the leaves claw downward.

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Did you test runoff ppm? They do look a little dark, an I feel like there are a few leaves that show some minor clawing. Overall I don’t think your plants look bad though.

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