BTW, have you tried anything yet? If it's not Fe or Zn, I'll be damned. Zn starts becoming unavailable at pH of 7, but Fe tends to be deficient more often in cannabis.
On to indoor organics — I'm going to have to try it myself and up the dry nutes in my soil mix. There's no chicken poop involved, so I don't expect a burn.
Except for these pandemic days, my job takes me away from home about 4 - 8 times a year, for a week or more at a time. My wife does not exactly have a green thumb. It's either organic soil or no growing weed for me.