Re: [APD] RE: CO2 off at night

["S. Hieber" <shieber at yahoo_com>]

Why aim to saturate photosynthesis? 

Scott H.
--- Robert H <robertph3 at comcast_net> wrote:
> 
> . . .Here is a quote from David Huebert, (". . .The 
> result is that approximately 30
> mg/L free CO2 is
> required to saturate photosynthesis in submerged aquatic
> plants."
> 
> I thought 30 mg/L equaled somewhere between 20 and 30ppm.
> Is it lower than
> that?


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