Humidity yeah, That's a big thing for the plant, especially in flower. But the pH isn't a huge deal in soil grows
OK ghetto growers im gonna be measuring for my new ghetto grow cab im going to build...so soon i will be posting pix of the box im going to be building
the proposed dimensions are going to be 3 feet high ... 3 feet wide ... and 4 feet long ..
its is going to be a sectioned off bottom of a closet that is basically going to be 1/3 of the closet but it is all going to be built out of easy to find stuff
im gonna use some old plywood i have around for the top and front of the box and some old shelf brackets i have to hold it all up
then my wife don't know it yet but im gonna swipe her spray glue to stick up my 2 Mylar emergency blankets inside so ill have a nice reflective surface
ill be using left over storm door weather stripping to seal cracks and duct tape on the inside since it is mildly reflective also and a DIY carbon filter out of a 80 to 120 mm computer fan and charcoal in some configuration(yet to be determined)
the lighting is going to be two 2 foot shop lights(dual 4100K bulbs) on either side or possibly across the back as side lighting for the pots and also 2 150 watt equivalent CFL's on dangle chains coming down from the top with the combination of them all and the Mylar reflectiveness it will give me 2700 lumans per square foot inside the cab allowing me to run 2 and even possibly 3 plants on a perpetual SCROG ...
GOD i love how weed makes you think up new and better cool shit to play with !!