CO2

[smoke p]

i say try it what hav u got to loose . if ur brewing it then throw it in if u hav the room why not?

[torture]

yeah im gonna go get myself a sodastream i think

[lordofgrug]

Hey, i used to do this with a beer brewing kit, when i had the space, and later with a bucket full of yeast and sugar. I found if i ran a tube from the exaust of the kit directly into my plant you could quite clearly see an increase of yeild in the localised area. It was a double positive aswell, because i could brew my beer twice as quick in the warm conditions of my cupboard.