Dry Ice

Will putting dry ice and water in a cup in your grow room be a good idea to create CO2 for the plants

well it would definitely make co2, but I dont know if its neccesarily a good idea as Ive never heard of anyone doing this, I have heard dry ice is very good for drying and curing your plants. You could do sugar and yeast, thats a simple way to make co2.

Yeah Dry ice should be like 99 cents a LB. and it works great! 6 lbs will fog up an entire floor in your home!

thats good to know

yeah my friend had a bunch so i was thinkin about leavin a cup of it in there for a while