OK raised PPM of veg mix to 800-850 yesterday. Some of the node stems are touch of purple. Anyone know what that means?! Too much nutes or too little of something? I have seen it on both my grows doesn't seem to bother plants but stems on nodes of some leaves are green some are purplish.
They seem to be growing good... but some of other peoples Super Lemon haze seems to be taller then mine at this stage. I am starting my fifth node on the SLH 1 and seems to be growing good but little stout.
Here is SLH 1:
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Roots of the same baby:
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SLH 2:
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AK47:
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Thanks for looking and any advice much apprecitated.
They seem to be growing good... but some of other peoples Super Lemon haze seems to be taller then mine at this stage. I am starting my fifth node on the SLH 1 and seems to be growing good but little stout.
Here is SLH 1:

Roots of the same baby:

SLH 2:
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AK47:
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Thanks for looking and any advice much apprecitated.