Day 57: Plant 1 is nearly as tall as plant 2. She is starting to turn purple as well. Plant 2 is nearing the end of flower.
Day 58: Plant 1 is 54 inches tall, same as her sister. Plant 2 is probably gonna come down at the end of this week, no later then the middle of next week.
Day 59: Both plants are looking good.
Day 60: No changes
Day 61: Plant 1 is now touching the lights at 57 inches tall. She is has started to turn purple. Plant 2 has received her final watering.
Day 62: Plant 2 has been chopped down and is drying. Plant 1 has some light burn from touching the lights, but is doing well otherwise.
Day 63: Plant 1 is looking good. Glad I left her grow out.
Looks like a magnesium deficiency to me. Some of the pictures from last week it looks like there is some interveinal yellowing and the deficiency has progressed. Epsom salts will help fix the issue. Happy growing!!!