Purple Stems?

What is the diagnosis for purple stems? Some sort of deficiency?

Many thanks.

How old is the plant? Cause it can grow with a purple or red stem a lot of the time, doesn't mean its a deficiency

Check your n level. Don't just add check first.

Purpling stems are a sign of either a Nitrogen deficiency or Phosphorous

It's weird, because as soon as i switched to FF soil and fluoros, all my stems turned red. Red stems are also a sign of overfert, so I'm thinking that the rich FF soil is causing it. They're not fert burned, but are defininetly getting the max amount prior to burning. Excellent soil, engineered to give max nutes possible without burn, and will provide nutes for the first couple weeks of veg without worring about any deficiencies.

We need more info to diagnose correctly. Age? Size? Fert?(if any) Soil? Hydro? Temp?

Could just be genetics though. I had some purple and red stems then it grew out of it

tom__420 said:

Purpling stems are a sign of either a Nitrogen deficiency or Phosphorous

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Where can I find this info in it's entirety? I need to have this. Please let me know or send me the link? Thanks.