4 weeks into flowering but no crystals

Hi everybody!

I have 5 beautiful ladies. I set them into flowering when the shortest was 40cm and the talles was about 80cm. All 5 has *really* nice flowers but

I am afraid that no crystals are appearing.(???)

My temperature is high - I cant tell exactly how much but about 28C only after 2h lamps are turned on. Ventilation is not so good either but I am using yeast technology to maintain co2 and the plants look good, healthy and they are growing fast.

Here this is how they look before 2 weeks.

https://www.rollitup.org/grow-journals/184970-i-need-your-approval-greenguys.html

Also there is just a little smell. Some time ago the smell was more intense. Maybe that is because of yeast I started to use? I should be just happy or the smell is like a indicator of quality?

you wont really see trichome formation until the 5th week. smell from the release of terpantines more prevelant later in flowering. handle the plant abit and you will smell it.