Panda film or dimpled mylar are the go.
I use panda film on the walls with strategically placed reflective "coreflute" panels to light up any dark areas underneath.
Ok sweet i prefer the cost of panda, as it must cover a 2x2x2 tent (i think thats the rough dimensions of it) but i built it myself outta pine and MDF so the panels were to large for me to work with by myself and made a real dogs breakfast out of it and have sooooo many leaks. I think i must add some ducting in there too for my exhaust fan.
Atm the "tent" is in a shed and temps are wayyyyyy to hot. I have a small little fan in there blowing at the girl to make her stem strong and got a 200mm exhaust fan for a bathroom, i also switched my lights to come on during the night now instead....any other ways to reduce temps or is high 30's ol as long as i keep the mositure up? Ill be transplanting her into a DWC in a week or so time anyway so will be CONSTANTLY hydrated.
O i also saw your DWC journal and saw you use those rubber mats.....i guess they would help seems how the pots are on a nice cold concrete floor lol.
HOWEVER i have always wondered if it would be good to have reflective material on the floor to reflect it back at the plant? This would mean hitting the underside of the leaf and im not sure if this would do more damage than good?
skiz a couple of posts you were talking about air pumps i checked google when i did my shopping and came across a online aquarium shop and they have some pretty sweet prices i bought a new air pump when i bought my two hydor air pumps and it was like 15 bucks with a year warranty i check ebay all the time but things seem to be really dear on there (plus you dont know whos watching your purchases)
O yes im still lookin at pumps steve. This place sounds great....shame you didnt give me a link
ahah.
On a side note again. Drum or can fans as an inlet?