Cycle 5 - Papaya under 200W LED

06/01/21 After 12 weeks of veg (which is really the equivalent of about 6 weeks because of all the setbacks I had), I finally flipped over to 12/12 today. Time to see what these ladies are made of! 😄 06/04/21 (Day F4) - plants are showing pistils already. Starting flower strong, except I have some yellowing on lower leaves between the veins, especially on the back-left plant. I'm fairly confident this is a magnesium deficiency so I'm grabbing some Cal-Mag tomorrow and will see if that curtails the issue. 06/05/21 (Day F5) - Fed all plants some Cal-Mag, especially the back left. Will monitor closely and see if it clears the issue up. 06/06/21 (Day F6) - Yellowing looks slightly worse today, even after feeding Cal-Mag yesterday. I still believe this is an Mg def. and hoping it gets better tomorrow. There's always some delay so I'm not freaking out yet. I'm told Mg def. takes a few days to stop progressing after correcting. The Cal-Mag I fed yesterday was a light dose anyway, and I'll likely repeat with more in another couple days, as this is the first time I've used Cal-Mag all cycle. As usual, my strategy is to not panic and over-correct 😎 06/07/21 (Day F7) - Confirmed this is a Mg deficiency with more research, and the help of a couple answers to my question here on GrowDiaries - thanks! Yellowing spread seems to have slowed. Gave them another touch of Cal-Mag today. Will continue to wait and see.