Nut deficiency?

[Ademe21]

Hey everyone !

Got this 13 plants from seeds I got from regular flowers.
They are in a soil mix 1/3 of worm castings, perlite and Coco coir. They grew all green and perfect but now it’s week 5 of flower and some are getting really purple on the stem, and some are getting leafs I’m gonna show with pics.
Buds look fine to me, but I don’t really know.

700 W Cobb LED lights, I’ve read that some plants get tanned under lights but leafs also curl down…
I’m feeding 3 times a week with Advanced Nutrients Sensi Bloom and molasses

Any comments will be very appreciated!!
Blessings!

[Borderryan22]

They look hungry. Coco needs to be fed every day to complete runoff. What are your ppm’s/pH after mixing your feed, before feeding them?

[OGIncognito]

Same question as @Borderryan22 …. Would like to see the run off PH and PPMs as well