Cannabis Abuser - DIY MADNESS

reluctantly starting the flush. fed the girls 100ppm equal parts of advanced nutrients 3 part 5.9ph 4 liters. every 3 days but the girls stopped drinking as much, the room has been colder (canadian winter settling in) could be due to this. one of the girls showing purpleee the top 4 inches of the canopy experiencing rapid yellowing of leaves. looks mottled brown spots and brown edges yellowing from tips inwards veins look natural. deficiency? light burn (my guess)? can't be ph. ppm at 700 after flush (she is in foxfarm soil).