I'm looking at 24"w x 18"d x H of grow space. I was thinking of getting 4 or 5 clones or should I go with just a couple and do some LST. Keep in mind this is my first grow ever so was thinking it might be best to just let them go free. What do you guys thank Oldone, ScrubNinja, anyone? Thanks!
If you are soil ScrubNinga, DrBudaGreens are the masters.
"Crown glass" - window glass and aquarium/ vivarium glass - Fig. 11. No UVB reaches these bearded dragons through the window almost completely blocks UVB. A meter aimed directly at the sun through one double-glazed glass window recorded 2uW/cm² when the unobstructed reading was 147uW/cm² - over 98.5% was blocked. Through other windows and several glass vivarium panels, a 100% block was seen.
However, sheets of UV-transmitting acrylic are no longer mass-produced and are increasingly difficult to obtain. Most acrylics are now formulated with additives which block all UV transmission. We have found a very small number of stockists which sell acrylic sheets FOR USE IN SUNBEDS, which do transmit up to 80% of the UVB.
Rives, it seems that used to be the case but not so much now. See here. (down the bottom)
Glass:
Acrylic:
Poopstinks if you read the masterpll pdf it has all the details on bulb orientation. Worth a read. It's posted on the fluoro lumens thread in my sig, or a few pages back in here I think.