Hey,
Searching for some hydro growing info (most I've found was canna growers forums) I just stumbled upon this: http://cdn.intechopen.com/pdfs-wm/33765.pdf
It's a bit long, but very in-depth, covering a lot of stuff from nutrients, temperatures, ph and oxygen levels.
Sorry if this has been posted before!
Searching for some hydro growing info (most I've found was canna growers forums) I just stumbled upon this: http://cdn.intechopen.com/pdfs-wm/33765.pdf
It's a bit long, but very in-depth, covering a lot of stuff from nutrients, temperatures, ph and oxygen levels.
Sorry if this has been posted before!