I got 2 heathly female plants about 24" tall under a 100 watt HPS. Last night I decided To box in around them and line the box with aluminium foil for refelction. Needless to say I checked it this afternoon and all the lower branches and leafs have started to droop and sag pretty bad. The top branches are still standing strong. I also noticed that the branches that are sagging are red in color whereas the heathly branches are light green. I pulled the box off and went back to just open light with no refelction. Is this the right way to grow or do you want as much light refelction as possible???? My timer is set for 16 hours on and 8 off.