QCS og kush! First grow, setup building

Hello! This is my first grow with a setup I have yet to fully complete! So to start I got my seeds from a friend who has grown some QCS seeds in the past, QCS apparently gives out og kush seeds away with their orders! Lucky for me I get some quality seeds for free to see what I can manage! I believe I'll start some nutes around week 3 or 4, the soil I was looking for was not stocked so I got as close as I could get. I'm using an organic promix, it's not ideal as it has some nutes added. I started my seeds in a garden tray dome as that is how I've always started my garden vegetables and low and behold they all germed. I was worried about the trays size so I carefully transplanted them into cloth pots on day 4 after hitting the soil dry. These photos are 7 days after opening the seed vials! One big set up problem I have right now in week one is no humidifier, my humidity has dropped as low as 35%! Today on day 7 I have set up a humidifier! Looking forward to week 2!