Welcome to RIU!
29 is a little on the high side. Also, don't see any fan for ventilation.... If you have plenty of space and your walls are basically white, why the container? I mean shit you have a 600 watt light..... I would get that stand out of there before something happens and they take a tumble.... they cant fall off the floor.... Just my 2 cents.
What is the pH after your nutes are added?
Good luck and keep us posted.