Having problems with my Promenea

[Discus]

Re: wiring fans in series or parallel, hope the attached image helps someone.
You also get a hybrid series/parallel; this might be used where you have parallel circuits going to each shelf with the fans on that shelf wired in series.

In general though, parallel is what you want.

re: the cinnamon, surely once you've made an alcohol extract "tincture of cinnamon" you can add the amount you want to a spray bottle of water?