Please help!

one of my plants' stems to the 5th set of true leaves(not counting the very first ones) is turning a reddish purple. what could it be and how to correct it? thanks ~GOODGREEN~

If the leaves look healthy, you shouldn't have anything to worry about. Low temps can cause this, it is also a plant trait in many strains, but it could also be a phosphorus def. If the plant looks stunted, try to add more P when you feed it, but if the plant looks healthy it is not a deficiency, it could be low temps or just a phenotype with that plant. I get purple stems in my plants and I haven't had any issues.

Do you have any pics of the plant by any chance?

i do no , no camara. but i think it s the temp thing cus my growroom has been cooler.. thanks man

No problem man- good luck with the rest of the grow!

thanks alot. i really hope its successful