In the end of the week 3 I saw first pistils so I count week 4 as flowering stage. Huge growth since the last week. Just compare this photos! I have been giving her AN Sensi Bloom A+B 2ml and 1ml of Carboload per liter, but probably will slightly lower the dosage, because leaves seems to be a little bit to dark green for me. Don't know if i didn't give her too much Nitrogen. I also lowered a bit lamps which are both now in the tent to increase PPFD to maximum, but still there shouldn't be more than 800 PPFD in one spot so good. They also started to drink significantly more water.
@GrowSport, Thank you, but they seems to be bigger on pics haha :D Final yield will show real final results. Thank you for your comment, appreciate it :)