Re: CO2 and low light

[busko at stsci_edu (Ivo Busko)]

Mike <grace005 at gold_tc.umn.edu> wrote:

> Greetings,
> 
> Quick question.  Is there any reason NOT to add CO2 to a low light (1.5
> w/gal) tank?
> 
> Mike

I believe it has to do with the compensation point. That is, the light 
level at which the amounts of CO2 consumed in photosynthesis and produced
by respiration balance out. Below that point the plant will produce more CO2 
than consume, so there is no point in adding extra CO2. Of course, this
compensation would be extremely variable from species to species, and perhaps
would depend on other environmental conditions as well.

-Ivo Busko
 Baltimore, MD

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