The girls are doing great, and now I'm just letting them veg. They have been quadlined, and from now on I'll only do some LST, removal of nodes, and defoliation. And of course transplant them into a larger pot.
The nutrients that have been mixed with the soil, and applied as top dressing keep the plants very happy and healthy so far.
@Mrs_Larimar, I don't know to be honest. I don't think paint on the outer layer of the pot will damage the plant. But we'll see, I currently have 4 plants in painted pots.