I was so excited for your grow that I had to start reading from this page backwards because your progress is surmountable. Great job on troubleshooting so quickly. I have a couple ideas now that you posted that link to the panels, thank you for that. Can any sheet metal panel be reflective, or is that a dumb question? I love to build my grow spaces, i'm in limbo right now, but I want to plan something diy but not crappy like my existing garden. Novice is as novice does, but my ideas are expanding everyday...