It is the angle of refraction of water in a rainbow
Mr. Squirryl once told me that it had to do with the 2 inversely fused tetrahedra that form the star tetrahedron containg a black hole at the centre of every atom, but he wasn't sure either.
I guess we'll figure it out someday
...and I think the question that 42 answers is SO SIMPLE, I must be crazy. But here goes:
What is the natural number immediately following 41 and directly preceding 43?
Such a simple question answered by such a complex number. I still don't see the need to have created Earth just to figure this out, but eh, who am I to criticize
>>> Okay, I took some measurements for AG.
Okay, so lets see what we are working with here!
A cooltube can definitely fit in between the width of your 7inch panels. Now this is depending on if you get a cooltube or an actual hood. I suggest the cooltube
Let's say you mount your light harnesses at the same level as those predrilled holes your white power cord is going through. So we completely eliminate that 7in of extra height.
A cooltube is roughly no more than 6-8 inches in diameter, so at its highest point I would estimate your cooltube to be 6-8 inches below the 7in panels.
So rounding that up to 10inches in total, we are left with 7feet of height!
Now considering that we don't want the plants to get TOO close to the HID, I usually give myself a 1 foot leeway.
So all in all, I'll give you a maximum of 6 feet of height to work with (taking into account the pot height and rounding that 10inches of actual height down to compensate for the cooltube).
Knowing that, I would suggest you don't go over 4 feet of height during vegetative growth if you are going to go with a pure LST regime, as the stretch will get you just to where you need.
In my honest opinion, I think you might want to consider building a trellis for your ladies with some simple PVC piping and 90 degree joints. With a trellis (Scrog) you have the ability to restrict vertical growth as much as you want by just keeping all growth below the net. And with this, you can set a MAXIMUM height of where you want your ladies to grow just before flower.
If you decide on this, then I can confidently say that you will have more than enough height not to stress over!
I feel like I am missing something. I'll have a reread after I post this, but feel free to ask any questions about my poorly written post, as I am quite baked at the moment