Purple stems and leaves. Causes and fixes?

Hello second post. I have 2 grows one in closet with 2 200watt led boards and a 4x8 tent w 2x GC ROI-E680s. I’m almost to harvest in my first grow ever under the 200 watts in the closet and although all my plants are doing great some of the plants have very purple stems that run all the way up some of the main stems and also some of the leaves on a couple plants are turning purple. The strain is gold leaf auto so there is no purple in strain but I’m thinking it’s some
Sort of a deficiency. The buds on plants with most purple stems seem to be a little behind with little to none orange pistols and less trichome development although the yield looks to even be better on purple plants. And the plant with most purple leaves has buds that looks the closets to harvest. Plant 1 and 3 are most purple stems with biggest but least ready buds, while plant 2 has almost no purple on stems and leaves but buds look almsot ready and plant 4 has some streaks of purple on stems but a lot of purple leaves and the buds on this one are very frosty with lots of orange pistols. I’m just curious on the purple but wanted to add the extra info for nerds. Im not worried about the purple but just curious and cause abs maybe if I can fix with nutrition. Please respond if you can would be greatly appreciated and I can give more pictures

I would be more worried about the condition of my leaves at this stage of a grow. They look hungry.

I water them 1 quart with cal mag every other day and mix in bottled nurtirents every other watering. Here’s some better pictures of leaves. I’ll give them a good feeding next time. Just using fox farms trio and have been warned by everyone to not use full amount and I have had slight nutrient burn earlier in veg a couple times when feeding close to full amount. What do you think of these leaves. They are all kinda crazy and I pull off alot that are just about to fall off on their own

those girls are begging for food. Do you have a good ph pen and ec/tds meter?

Your plant is hungry. The purpling is caused by P def., but it looks like she's deficient in more than just P.

waterproof808 said:

those girls are begging for food. Do you have a good ph pen and ec/tds meter?

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Oh gosh glad there’s a noticeable area I can improve in though but yes I have both. they are inexpensive and came in a bundle together from vivosun under 20 bucks. Seem to work just fine though. I have always kept ph between 6-7 and have not been measuring ppm. I did once early on and I know my tap is already very low. Should I get those blue lab pens I see a lot of people using?

Hollatchaboy said:

Your plant is hungry. The purpling is caused by P def., but it looks like she's deficient in more than just P.

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glad everyone can see it at least haha. Which p do you mean. Phosphate? Thanks for response as well

benonhands said:

glad everyone can see it at least haha. Which p do you mean. Phosphate? Thanks for response as well

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Or potash?

benonhands said:

glad everyone can see it at least haha. Which p do you mean. Phosphate? Thanks for response as well

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P is phosphorous.... K is potassium.

Hollatchaboy said:

P is phosphorous.... K is potassium.

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Ooh smh the periodic table lol I thought you were using text slang or something. What what you recommend I feed? Ppm? Etc

benonhands said:

Oh gosh glad there’s a noticeable area I can improve in though but yes I have both. they are inexpensive and came in a bundle together from vivosun under 20 bucks. Seem to work just fine though. I have always kept ph between 6-7 and have not been measuring ppm. I did once early on and I know my tap is already very low. Should I get those blue lab pens I see a lot of people using?

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Get the bluelab, and calibration solutions, and KCL storage solution. Calibrate at least once a month. When not in use, keep the probe in the storage solution. You need to be disciplined when it comes to ph meter use, care, and storage.

Hollatchaboy said:

Get the bluelab, and calibration solutions, and KCL storage solution. Calibrate at least once a month. When not in use, keep the probe in the storage solution. You need to be disciplined when it comes to ph meter use, care, and storage.

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Will do! Thank you a lot i will get better pen. Now im
Scared to see how off the calibration is on the pen im using now

benonhands said:

Ooh smh the periodic table lol I thought you were using text slang or something. What what you recommend I feed? Ppm? Etc

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I recommend feeding the exact amount they need.

Honestly, I only use bottled nutes in hydro, so I really don't want to give bad info on feeding soil, but she needs a decent dose of balanced nutes, imo.

benonhands said:

Will do! Thank you a lot i will get better pen. Now im
Scared to see how off the calibration is on the pen im using now

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Don't worry about that right now. Just get a decent pen, and take it from there. If nothing else, you gained experience for your next grow.... assuming you do it again.

Hollatchaboy said:

I recommend feeding the exact amount they need.

Honestly, I only use bottled nutes in hydro, so I really don't want to give bad info on feeding soil, but she needs a decent dose of balanced nutes, imo.

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I’ll play around next feeding thanks alot! Do you grow organically with slow release in soil. I’m taking the mass followed beginner route soil and bottles as beginner

Hollatchaboy said:

Don't worry about that right now. Just get a decent pen, and take it from there. If nothing else, you gained experience for your next grow.... assuming you do it again.

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Already started next grow haha Bruce banner and gorilla glue in 4x8. I’ll get on Amazon before they get to big and deficient! U rock thanks for everything

benonhands said:

I’ll play around next feeding thanks alot! Do you grow organically with slow release in soil. I’m taking the mass followed beginner route soil and bottles as beginner

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I'm doing no till right now. Slow release in a sense.

benonhands said:

Already started next grow haha Bruce banner and gorilla glue in 4x8. I’ll get on Amazon before they get to big and deficient! U rock thanks for everything

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No problem. Just remember to keep it simple. No need to make it complicated. Don't overwater. Don't follow bro science. It's a plant, keep it as close to nature as possible, and it'll go smooth.

benonhands said:

Oh gosh glad there’s a noticeable area I can improve in though but yes I have both. they are inexpensive and came in a bundle together from vivosun under 20 bucks. Seem to work just fine though. I have always kept ph between 6-7 and have not been measuring ppm. I did once early on and I know my tap is already very low. Should I get those blue lab pens I see a lot of people using?

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you dont necessarily need a blue lab pen, but you should learn how to measure ppms. It helps to dial everything in and it will make your feeding levels more precise/consistent.

I rarely ever see anyone use the FF trio without issues.