Approaching end of week 7 (end of week 1 of flower).
About 3.5 - 4 inches growth this week.
From the outset, I only filled my pots 2/3 full of soil. This allowed me to add a further 8-9 litres of soil with two third strength GHF Bio Grow powder mixed in.
I now have full pots and have noticed that the additional soil has added an extra 1 - 1.5 days to my watering cycle as it is retaining moisture much better.
Carried out slight defoliation to aid light penetration.
Will increase cal/mag slightly going forward.