What's the temp range in your grow space? I've seen stems change like that when the temp in the evening gets down in the 60s range.

It's at a warm 73-80 all the time, mostly 77-79....55-60%rh...(6)37w cree cxb 3950 at 28".... .8 ml/L sensi a/b, got my ph to 6.4 for the promix. The double grape above is in promix. The Other two plants in coco are on .125 teaspoon of veg + bloom powder and ph of 6.0. Ppm between around 300. They are all showing purple stems and veins in the leaf
 
It's at a warm 73-80 all the time, mostly 77-79....55-60%rh...(6)37w cree cxb 3950 at 28".... .8 ml/L sensi a/b, got my ph to 6.4 for the promix. The double grape above is in promix. The Other two plants in coco are on .125 teaspoon of veg + bloom powder and ph of 6.0. Ppm between around 300. They are all showing purple stems and veins in the leaf

Here are all of them
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2nd update, one of the white train seedlings is appearing quite effed up, any sense in growing out this mutant or just drop a new seed?

She's just special[emoji23] well you have to ask yourself if the time and real estate are worth it to you. If you don't have a lot of space..... but that's just me


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Ok for all the pro's..... came home today and there is noticable growth and the new growth looks good but I noticed more and more purpling of the stems, phosphorus def??? I know that that's usually a symptom in the flowering stage, but so early? Also the lower leaves on one of the plants in the largest grape crinkle is looking unmmmmmmm bad lol
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Not enough, too much nutes? Ph is right in line. Suggestions would be well received thanks


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Can't really tell but you got some epsom's? Might be mg def. Running leds?
 
200w of 6 Cree cxb cobs. Yea I gave a tiny bit of calmag today.


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Hey man. Not sure what kind of promix your running, but after some talks with their reps, you want to get your ph in between 5.8 and 6.2. however, the nice thing about promix is they have 2 different sources of lime that corrects the ph to 6.2 so your 6.4 is probably just fine. I wish I could help you further but it seems both your mediums are having the same "issues". What kind of promix are you using? Not many promix users so we gotta help eachother haha!

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Hey man. Not sure what kind of promix your running, but after some talks with their reps, you want to get your ph in between 5.8 and 6.2. however, the nice thing about promix is they have 2 different sources of lime that corrects the ph to 6.2 so your 6.4 is probably just fine. I wish I could help you further but it seems both your mediums are having the same "issues". What kind of promix are you using? Not many promix users so we gotta help eachother haha!

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Hey thanks for the response!!! I use the BX


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