Purple stem problem

[Rusty Trichome]

15) Any additives or tea's? (I just started using molasses on my flowering not on veg ladies yet...still figuring it out only doing 1tbps/1 gal tap water )

Cut back on the molasses. At most, I give 1 tsp per gallon per week in flower. much less in veg. (1 tsp per gallon, twice a month or so)

16) Are your ph levels stable, or do they fluctuate? kinda stable

Keep ingoing water ph stable. You can't get an accurate runoff ph with the color-coded ph test kits. The water tinting skews results, and the buffers in the soil help keep runoff ph in line.

17) What is your ingoing water's ph? ...your runoff ph? Will know soon
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? Yes 3 times a week after watering and with spray bottle.

Keep ingoing water between 6.3 and 6.8 ph.
Why are you spraying them?

I did some searching and seen some info about lack of Mg or P. LMK guys

Since you are already giving an overdose of molasses, likely too much mg already.

If no damage, death or malformations, the purple stripes could easily be genetic.