Progress for the week:
Day 15-17, raised Ec to 0.9,
From the 19th day Ec 1.35
also added light, a little blue and more red, so that plants stretched a little.
Lux 12,000,
Leaf T 22.5
Humidity ~66%.
One of the plants has a strange structure of the colas (see photo) as if it grew not from a seed, but from a clone.
The one that was small sped up a little, and the one with drooping leaves was and continues to show overwattering, I will try to water this plant once every 4 days so that it dries out.