Am I Killing These?

I had this thread posted earrlier and somebody told me I was killing the plants but won't tell me what to do? The only diffrence between then and today is I added three bottles of the CO2 the ones from the DIY section. I would really appreciate and and all tips

Here i the link sorry https://www.rollitup.org/grow-room-design-setup/28984-first-attempt-help-please.html

Killing what? where? huh?

I added the link in the post right after the original I am a dumbass sorry