purple stems on healthy plants. what can i do?

I have 5 different strains in veg all of them ranging from 10 inches to 18 and they all have pruple lines going up and down the stalk and leaf petioles are purple. Ive referenced some info about defficiencys and it seems that a sulfur def. could be the cause but all of my plants are lush green and growing every day. What does this mean?

may just be the genetics, alot of strains can have purple on the stems and leaves. if they look healthy i would just chill and not worry to much.

4 out of 5 strains turn purple though? Yeah some are colored by genetics but in few cases. I just really took notice of it today and thought that couldnt be normal.

the plants are in FFOF/FFLW mixture and some in streight botanicare pure earth aerated formula. I feed them pura vida grow
6-3-4, super thrive and use lemon juice for ph down to around 6.1-6.2 before feeding.

i think i read somewhere that it can be from stress

What can you do? let them be purple.

Like I said the plants show no kind of stress and are growing. I guess I hope Im not overworrying, I mean if all of your beautiful plants stems started turning colors wouldnt you want to know whats going on?

if the plant is lookin healthy and grow'n nicely, who cares? let the stems turn bright pink and say its a exotic strain. I don't know im fukn baked>

Sound just fine. Don't think purple's a bad thing.

my plants have purple stems and they are fine they change depending on how strong my nute solution is

It can be an indicator that the temps are going too low during lights out.