Somebody please take me in as there student

I agree exhaust is a must, and i wouldnt take your plants outside. Its easy way to bring pests back into your room. Or worst get seen, I also PH my run off water from time to time to get my soil PH. its pretty easy if you pick up a good PH pen.

thanks for all the info wating to get a little cash for mylar also mh bulb some plants still have yellow leaves what does that mean and how tall befor 12 12 is needed all but 2 still seem stunted growth anybody know why

also if u look at last pic if i mount fan there and exaust out the other side think it will work fan is a 4 inch massey 5 dollars at walmart

need answer on exaust still