Glad I Did Not Know
Figuring that t 6700 feet there is only about 78% of the oxygen as compared to sea level.
Frankly all the time I lived in Colorado, I never gave the issue as it relates to aquatic plants much thought.
It would seem to me that there would be only 78% of the O2 dissolved into the water. Of course, increased temperature also reduces the carrying capacity of the water. I really had not thought about it, but then it would seem that, as with higher temperature water there would be less dissolved CO2.
Aquatic plants cannot be grown in Colorado.
I am glad I did not know this all the years that I lived in Colorado.