Unknown seeds

Viktor Hello,I am Viktor and this is my second grow.I had great results first time growing 2 autos(pineaple express and royal haze).This time i got 9 plants,seed from weed i bought over the time.My initial plan was to keep 2 of them(tent 0.8/0.8) but now id like to keep them all😀(if they are female).2 of them are taller so i believed are sativa.I would be grateful if you could give me some advice.

Viktor Ive done some cutting today-defoliation and lollipopping,not much because last night temperature droped to 18.5 degrees Celsius and i didnt want to stres the plants to much.

Viktor Hello again.Unknown seeds are auto ;) .Just the bigger one it isnt.I 18/6 light schedule(12/12 nr.2).I notice yelow coulour on the top of the leafs so I reduced the nutrients and increased distance to lamp.My biggest problem is that i do not have enough space in tent but Ill find a solution today.Picture are made before yesterdays defoliation. update 1:Light 12/12.I I'm going to remove the plants from the tent at 12 hours. Let's see how it goes.. update 2: 2 days before 7 week-So far everything looks fine.I struggle a little to keep the humidity below 60%( the weather is not on my side but sunny days are coming).I ordered PH tests + Acti-vera.I use mountain water.Soil: Canna Terra and Potgrond-H .Ill invest more money on next grow.Watering volume between 0.35-0.6 L/plant.