I am constructing the the box in my attic..and I'm about 80% done and decided to post some setup pics early on and update it with progress.
The box will be 48d x 36w x 50h inches. 400w MH/HPS... shelves attached for outtake fans (later adding carbon filters onto the outtake hole when odor becomes a problem). One 16x16 inches passive intake hole on wall. Hinged door that hasn't been attached just yet. Disregard the random duct..I haven't connected it to the reflector and walls yet.
Germinating some bagseeds this weekend that I have and some from a friend that are some hybrid, but doesn't know what they are...(the guessing game will be in employed)
Plan on using FFOF soil mixed with perlite, vermiculite and possible some top soil or something that will dilute, to a very little degree, the nutrients in the soil, helping with pH fluctuations (esp. lowering). Probably going to use the trio pack of FF and most likely not use the grow big, but I haven't decided yet, either FF or floranova grow and bloom.
Will post more pics real soon!