Some of the leaves are yellow/ brown. Did a bit of research, looks like soil might be dry (especially due to high temps during this time of year) and possibly leaves being burnt by sun.
Watering with a little bit more volumes of water, based on extra heat. Will track and see how week goes. The 2 bad fan leaves which looked really bad, I cut them off. Increase in volume of water for plants really helped due to really hot temperatures.
Week 10 no nutrients (only used on 1st day and 2nd day of week 10) , just straight water.