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Re: [APD] Wicked man

Thomas Barr wrote:
> Recall, 100% CO2 vs the 0.038% in air. 

I'm not convinced that bubbles that have persisted long enough to travel 
around the tank contain any significant amount of CO2. CO2 is so highly 
soluble that you can watch bubbles shrink as they rise. That putting it 
in front of a spray bar suddenly allows the bubbles to last long enough 
to travel around the tank and come to rest on the leaves of plants - and 
stay there at that - doesn't seem intuitive to me. When I get this new 
tank set up I will try finding a source of 100% laboratory grade CO2 to 
test this theory.

Jerry Baker
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com