Hi, yeah thanks so much for that reply, that is a very detailed response and mirrors a lot of the information I was able to mine of the Internet.I recommend starting out with a Jr and smaller sized girls.
Jrs are easier to get the girl 'on the rez" and get the 'magic' of the Earthbox started. It's easier because of the two wicking areas are to each side of the centerline of the box. This will get that relationship with the plant taking a large percentage of the water it needs from that wicking area with relative little nutrients in the water. This allows the girl to take up the nutrients with feeder roots.
In other words, VPD will have less of an impact on FORCING the plant to take up nutes WITH the water it needs to do its work. In a regular pot, you can raise the nute take up by raising the VPD(Vapor Pressure Deficit) or in common terms, transpiration.
The biggest thing in running EBs is to keep nutes out of the rez water as possible, once that relationship with the roots and wicking areas is established.
I've got an idea for the makers of EarthBoxes. It will be the Canna Edition of the regular size EarthBox. If they don't make it, I will. It's very simple change to the media separator with adding a wicking area in the center like in the Junior. Honestly, I doubt if they will make it with their average buyer not growing cannabis and the perceived negative connotation.
I can see a lot of potential in them boxes reminds me of a deep water culture growing I did a couple years back in a bucket. But like you mention this is a much more involved in working with a live soil Mix.
After a good read, I’m not entirely sold possibly not right for my circumstances at present, but I definitely love the idea and the possibilities If my circumstances would allow.
I would also relish the possibility of building such a project as it looks like a very customisable box.
Loving your grow Man.