Quote Originally Posted by JohnnyPotGrower
Dry Ice def helps your plants grow. Dry Ice is frozen CO2, so when it evaporates it is releasing pure CO2 into the air. If i were you, I would let the CO2 evaporate on its own (loose the warm water). This will slow down the evaporation rate and allow the plants to consume all the CO2. If you have the CO2 release into the air more quickly then there is a greater chance some of it escapes before the plant can absorb it. I have looked into this because I am considering using dry ice as well because CO2 enrichment in the air can increase the growth and quality of plant enormously (as you have seen in your 1in growth).

I am very curious how expensive the dry ice costs you and where you get it from?
I'm in the SF area of cali and the local Raleys grocery store sells it for $1 a pound. You can also try Baskins & Robbins ice cream store or another ice cream shop may have.
MrLzyBones Reviewed by MrLzyBones on . using dry ice 4 co2 ive got 2 shop lights with 2 builbs in each light, 60 watts each builb, and 4 plants inthe center of the lights. i keep the lights about 2 inches from the top of the plant. the lights are hanging from the clothes rack in my closet. i bought a little fan and some plastic drop clothes (the ones for panting). covered the whole thing with the drop clothes so its hanging from the clothes rack to the floor, got 3 pounds of dry ice put it in a tub with warm water and stuck it in the enclosed area on Rating: 5