Nice, I just put up some cheap mylar in my flower space as I felt that the white that was in there was more yellowish than white. came out alright.Hope it reflects better than the off white surface that was already there. I had also got a ppm meter and ph meter as well and I have been playing with the PH up and down to get a handle on getting my waters PH within the correct range. I will probably wait until week 2 and start dosing 1/4 strength of the big bloom and grow big. keep it up man.
EDIT: wow those mylar emergency blankets raised the temps in my flower room by like 10 degrees ouch....