I growing Zowahh strain, started under LED'S (full spectrum, for veg and flower) cos it has more blue light than ordinary hps. After a week I separated plants, half of them in the tent under HPS another half stayed under LED'S. I've noticed that stems turned purple in the beginning. Under HPS plant colour back to normal green with minor purple colour. Under LED'S turned even more purple....So what does the LED'S actually do to the plant? I keep 24/28c° RH 60/70 PH 6.0 I thought lights to intense so turned down to the minimum but after few days no difference...Zowahh its a purple strain,I thought that's genetics plying role,but now I see the difference....