From F. F. BLACKMAN and G. L. C. MATHGEL. With strong light and limited CO2 the greater the importance of temperature for the rate of Ps. With excess CO2 and limited light the lesser the dependence of temperature on Photosynthesis.

With our temperature ranges can this be a measureable effect? If so would this indicate that elevated CO2 levels are also of importance if we have fluctuating temperatures?

Or is this bupkiss in our environments? :P

Well , our temps tend to be stable, most aquatic systems do, but shallow placid weed choked ponds might not.

At higher temps, say with discus etc, the plants also grow much faster.........making sure they took this factor into account via control would be required.

However, most folks do not think about temp metabolism rate increases, lower CO2 etc at higher temps, 2x say at 72 F vs 86F.

Temp can slow things down as well if the fish can handle lower temps.

Regards,
Tom Barr