Day 22: I watered each plant with 800mL of water and 1.5mL of Bio-Grow. I also added some soil and it looks better to me now. Then I made up my scrog, each side of the squares is around 10 cm. I placed it around 20cm above the pots, but I think it may be too high. As it's my first time using that technique, feel free to share any tips or advice you may think of!
Day 25: I watered with 800mL of clear water. The top of the plants will reach the scrog soon.