RQS Royal Highness - First Grow

02 June 2020 - Day 36 - 1st day of week 6 for my Royal Highness. Still in vegetation, I plant to keep her in vegetation for at least 8 weeks. I'm taking this first grow as a learning experience and I'm glad I started with a photoperiod strain. It gives me the confidence to experiment without worrying to much about the time it would take to catch up for mistakes I might make. No water today. The only thing to report is discoloring of one the lowest fan leaves, the other one seems healthy so my guess is that some neem oil got trapped in it the last time I sprayed it and the leave got burned from the light. I will keep an eye on it, I don't think the soil is exhausted already. I will post new updates in 2 days if nothing relevant comes up! Cheeeeeeeeers 03 June 2020 - Day 37 - Watered with 100mL tap water (pH to 6.5 with lemon juice) before bed time. 04 June 2020 - Day 38 (Picture) - I didn't touch the plant today, but I checked the precision of my pHmeter with bottled water, I used one with pH 6.2 (reading was pH 6.5) and one with pH 6.9 (reading was pH 7.2). So basically I have underestimated the acidity of my solution, it was 6.2 and not 6.5 as I thought. I don't think this could be the cause of the spot on the lower fan leave but I raised the pH of my water so that next watering, pH should be 6.8. 05 June 2020 - Day 39 (Picture)- I watered my queen today using tap water pH 6.8. I can see new yellow spots on the other lower fan leave and I'm starting to worry. Any suggestion is very welcome. For now I will just keep an eye on it. Not much I can do since she is getting all the nutrients from the soil, and this is my first grow so I don't want to make things worse. I raised the pH of my tap water, the only thing I could think is magnesium deficiency due to low pH of water. The problem was confined to one leave only in the beginning, now the other one seems affected too. My soil is heavily fertilized (ATAMI Kilomix) and the manufacturer advices to start nutrients only at flowering, Could it be some Nitrogen toxicity perhaps? 06 June 2020 - Day 40 (Picture) Today I did some LST to promote growth of the side branches. I am unsure on whether I should top the two ends or not. No water today. 07 June 2020 - Day 41 - Gave her 200mL plain tap water pH 6.8 just before lights went off. Tomorrow is the last day of week 6. I will post a picture then. Thanks for stopping by :) 08 June 2020 - Day 42 (Picture) - Last day of week 6 for my girl. The tips of the lower leaves are turning yellow, I'm still unsure on what the problem is for sure. We shall see. Peace and love you all!