Just an update. Turns out to be 3 females indeed.
They switch to 12/12 light period on 12/06, so theyre within 21 days in flower now.
The bigger plant in that time, the indica dominant, turns out to be the smaller one right now. The other two, very sativa dominants, are just enormous and flowering fast. Theres just a lot of pistils, theres no buds yet…
I was feeding every 5 days, now theyre drinking every 3 days. As soon the buds starts to get some weight, ill start feeding every 2 days maybe.
sativa 1 - LST and TOP trim - she has now 5 top buds.
sativa 2 - Only FIM trim, no LST at all. Shes the bigger one, with 4 large top buds.
Indica - LST + TOP trim - The smaller one… 3 top buds, and a small plant. I almost removed her from the tent. I hope she turns out to got some fat buds…