I replanted into 25 L pots. This will be the final size for all plants. It was rainy all week. The autoflower plants seem to show weird signs of growth (twisted leaves/canoeing). I think those were signs of overwatering/nutrient lockout, as the soil didn't get the chance to properly dry during the constant rain. The photoperiod plant seems to be fine.
I looked into the pH of my tap water and it turned out it's at 8. I half-heartedly flushed with water at a pH of 6, but I was scared of completely overwatering the plant as it was raining all the time. From now on, I will pH adjust the water before watering (it is still raining a lot though).
I also topped the photoperiod plant to see what will happen (I thought I would rather start gaining experience now than later). My friend (who only grows indoors) told me to consider defoliating, but after some research, I decided to just remove a few leaves to see how the plant will react.
I didn't feed because that would mean introducing more water and I replanted using pre-fertilized soil, so there should be enough nutrients to at least maintain its growth rate (currently very slow).
Feel you mate, started my balcony grow start of april and getting sun during may/june was the biggest challenge (yield was small). Overall your plants look nice and thumbs are pressed, that next week's sun will fatten up your girls.