dry ice?

has anyone ever used dry ice for co2 enrichment? would this work well in a small closet or no?

Nah never did dry ice but yeast &| sugar in bottles workes pretty good

yeah it does work good if ur cab isnt vented while its in there.... it gets expensive but its a good way to beat heat probs and give co2.... some ppl will just put it in an open container... some ppl will put it in a gallon jug with outlid or with lid but air tube coming out to under plant.... or i have a friend that puts it in a ice chest that he keeps a airpump in and has an air tube for each of his plants and has the tube tied to the main stalk in center of plant.... its all up to u

thanks for your input

You should try the co2 pucks if you're in a small space.