GDP- Second attempt

Day 45 (Feb 28) - Temp: 72-76 F day / 68-70 F night. RH: 55.3-61%. VPD: 0.87-1.1. PAR: 375 center, 345 on sides / DLI: 24.3 , 22.36. I think I'm stressing her out a bit by having the VPD frequently above 1.0 resulting in her relying on water from roots so much. I decided to up the target RH to 60. I also decided to target the temp around 74-75 to help her take in Co2. Both of these targets will result in a VPD frequently around 0.85. I also plan to have her DLI up to around 30 by the end of this week. I hope that isn't too fast of an increase considering PAR will go from 375 in center to 463. Based on some information that I read, Ill need to reach a DLI of around 37.5 by end of veg. At end of day I increased light settings for tomorrow: Changed from level 3 of 10 to 4. PAR= 400 in center and 370 on sides / DLI= 25.92 , 23.98. I trimmed a couple of the lower leaves earlier in the day. Day 46 (March 1) - Temp: 72-76 F day / 67-70.8 F night. RH: 54.4-64.4%. VPD: 0.67-1.05 . This morning 2 of the top fan leaves were in praying position. I initially thought it was because she was getting too much light, but apparently what I saw was a good sign. HOWEVER, I also noticed some yellow discoloration growing on 2 of the leaves. This could be light burn but also a calcium/magnesium deficiency. This morning the PAR reading was around 460 and so I raised the lights this morning prior to noticing the growing discoloration. PAR is now at 400. This evening as I was checking the leaves I saw some water build up between 2 of the lower leaves. I ended up doing an impromptu defoliation to minimize possibility of mildew on leaves. Day 47 (March 2) - Temp: 71.6-76.4 F day / 68-71.8 F night. RH: 55-62.1%. VPD: 0.79-1.16. WATERED: 64 oz (1.9 L) (Ph in 6.38 / EC 1040 uS / Ph out 5.85). This morning I fed with Soul Grow and some cal mag supplement. Today was the most water I gave her at one feed. This is the first time I noticed a big difference in PH in and PH runoff. Later in the day I noticed the yellowing of some of the leaves diminish. This evening I noticed that the leaf showing signs of calcium or magnesium deficiency "tacoed" a little bit and the tip curled upwards. Tips on a couple other leaves are yellow and curled upwards. I think what I might have is an iron deficiency. I took a soil PH tester and tested 3 different spots in the soil with strange results. The first spot was 6.6, second was 6.16 and the third was 6.3. Not sure what to do with that information. Day 48 (March 3) - Temp: 73-764. F Day / 68.8-72.6 F night. RH: 54.6-63.2%. VPD: 0.77-1.16. WATERED: 940mL (PH 6.35, 70 F degrees, no nutrients). I was concerned about nute burn and so I gave it a little flush in the morning with some tap water that I had aerating in a bucket overnight. I didn't want to give too much water considering I just watered the day prior, but I wanted to minimize the nute damage somehow. Day 49 (March 4) - Temp: 72.7-76.9 F day / 68.8-72.8 F night. RH: 55.7-63.7%. VPD: 0.77-1.10. PAR: 445 at center, 410 on sides (DLI= 28.84, 26.57). Kept a close eye on the state of the leaves throughout the day. She is growing fast but the yellow hasn't gone away. Ill keep monitoring for now. Just before lights went out I decided to top her. A bit late to do that but at least it was before flower. Day 50 (March 5) - Temp: 72.1-75.8 F day / 68.1-70.1 F night. RH: 56.8-61.1%. VPD: 0.79-1.25 Day 51 (March 6) - Temp: 73-78 F day / 68.9-70.9 F night. RH: 56.9-63.9 % . VPD: 0.87-1.36. WATERED: 2.77 L (PH ??, 70 F degrees, 0.25 mL Kelp, tiny drop of silica). I prepared 64 oz of water with kelp and a drop of silica and forgot to check the PH prior to feeding. My tap water PH is normally around 8. I didn't get enough runoff water to test. I gave 880 mL more water at a PH of 6 to hopefully balance it out. I got plenty of runoff water this time with a PH of 5.98. OOPS!! Silly me. I hope I didn't totally mess things up.