Thanks everybody for your advice.

Upon further review I think I will forget the plex or even glass for right now. I don't have an ocsilating fan blowing under the light because I thought the air being pumped in would suffice for that. I have a small fan, I guess I'll put that in there and see what happens.

the image reaper: very glad I could help. Of course the idea wasn't mine. I think I saw it on Overgrow when they were around. I just made a few changes. I see you are using peat pellets with the bubbler. I've never heard of that before, but I don't see any reason that can't work just as well, and obviously does. I've always set my clones directly in the cloner, without any medium to hold them. Once good roots are going on, I lay the roots right in dirt (in summer), water well and let dry out completely before next water. Obviously this works as well for hydro.

stinkyattic: I have two four inch inline fans (canfan brand I think) before my light, in a run of about 22 feet, with some corners. Zandor says you should have air pushed over your bulb instead of pulled, but I was thinking maybe it would be better if I had one of my fans after the light. Does that make any sense? My closet sucks air from near the floor of my office, and pushes it outside the building.