~ 3rd week ~
Zen1 is developing quite well - she's 15 cm tall and has reached the fifth floor of leaves. The space between nodes is about 2 cm.
Zen2 (a week younger than Zen1) is about 10 cm tall and begins to develop the fourth layer of leaves. The lack of one embryonic leaf caused slowdown of growth in the last stage of germination. But that's over - she's fine now. It's important that she doesn't bloom too soon - before reaches the right size. But, unfortunately, i have very little influence on this - since she's an autoflower.
Zen3 also feels much better - significantly accelerated the rate of growth this week and size is similar to Zen2 - 10 cm. Although the lower leaves clearly indicate that it needs something (more nitrogen probably), but the most important thing is that she has them at all - after all, only the stem sprouted from the ground without any leaves. So, that's already a big success.
At the end of the week i sprayed the plants with a solution of neem oil - prophylactically.