So I have 2 plants. same seeds. day 76 and close to harvest. plant 1 is larger and has some of the fattest buds I have had. plant 2 looks good but the stalks have turned completely purple. watering and feeding is identical. lighting as well. (300w). always ph'd to 6.20 to 6.29. Will the purpling cause any problems and what may be the issue? my 4th grow and I am hoping to get buds that not only looks good but smoke good as well. all previous plants I may have harvested too early. These I will let go a while longer as the trichomes are still a bit clear. Photos show the difference in color