I'm using two LED panels right now, 500W total of LEDs (315W actual draw!), equivalent to about 1000W of HPS. However, I can keep my lights much closer than you could keep a 1000W HPS setup...and there IS a lot of light reflecting off the Mylar base of my grow tent (the entire tent is lined with the stuff.)
So I'm wondering if those lower leaves are growing down because they're being shaded by stuff above, and the reflection off the Mylar might be brighter than the direct light...
Anyone else run into this? I'd put down something dark under the plants, but I tend to splash nutes/etc when I hand-water, and the Mylar is extremely easy to clean up... (And since I'm keeping the lights fairly closer, the Mylar can reflect a decent bit of useable light, so it's probably good to leave it uncovered.)
The main problem is that it's a pain to hand-water these things with the leaves growing down! So is this more of a normal thing to happen to bottom leaves on every single grow, or is it perhaps being caused or exacerbated by the reflective Mylar base of my grow tent?
Edit: Downloaded pics from my camera...you can see the lower leaves completely curling down around the planters, etc! And that's after already pruning several. (Sorry about the white balance, my new LED panel is different weird purple shade overall than the existing one, so I need to calibrate it with a gray card again, and it still won't be right! And I also need to take better pics of the lower leaves, since they're underexposed...) These are in a 4'x4' tent BTW, the wide-angle lens I'm using makes it look smaller than it actually is...
Edited by vapeos, 30 May 2012 - 05:31 AM.