I'd say about 20 lbs.

Anyway, this has to be up there with dumb posts... I hope that guy wasn't serious about not knowing if iguanas breathe or not. Don't lose sleep over co2, there are much bigger concerns than that! You could affect your yield more with a dehumidifier than yeast. As long as you have proper ventilation there will always be enough co2, trust me this planet has surplus.

Also, everyone knows that canaries make the most co2.

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"I smoke two joints before I smoke two joints then I smoke two more!"

I was thinking possibly rabbits. Especially during mating season.

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One sec...I am trying to think of something clever...
Got CFL? http://www.rollitup.org/cfl-growing/71259-cfl-sog.html

now we're getting somewhere.

i'd just buy a bigger light.

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i'm the guy i've always wanted to be

A mouse on a wheel

Instead of putting a whole flock of stupid hamsters in there you could accomplish much more co2 by simply opening up the door once a day & laying a big fart, then closing the door.

That's methane and hydrogen sulfide not CO2.

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One sec...I am trying to think of something clever...
Got CFL? http://www.rollitup.org/cfl-growing/71259-cfl-sog.html

Yeah,i know, but neither one will make a difference in anything

I still cant get over a mouse,this is about as bad as the turtle water thread.

Maybe you could hook the hamster wheel up to a fan system so you get co2 and circulation. Someone get on this now!

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"I smoke two joints before I smoke two joints then I smoke two more!"

Thanks PastTimes. You provided me a portion of the answer I am looking for. I never claimed that this was an effective method just wanted some #'s for sh*t's and giggles. Light and air movement are not the problem. Humidity and Heat will be if I don't correct for them. Any one ever try this product -Edgestar Portable Air Cooler w/ Ionic Air Purifier-
Claims it will drop output air temp by 12 degrees, dehumidifies, and has an ionic purifier which I doubt works very well. Little swamper coolers won't work well in my area due to high humidity. Again #'s for regulated CO2 and small animals would be appreciated.

I suspect you would be better off asking that respiration question in a veterinary forum.

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One sec...I am trying to think of something clever...
Got CFL? http://www.rollitup.org/cfl-growing/71259-cfl-sog.html

What a sane answer. I am unaccustomed to those.

__________________
"I smoke two joints before I smoke two joints then I smoke two more!"