Aquarium vs. Lake Water Quality

October 7— How do you think your ecosystem’s water quality compares to water quality in a lake.  Explain.  How would it compare to water quality in a river?

The water quality of the lake we tested had a temperature of 64 degrees fahrenheit, a level of 0 nitrate, 0.25 of ammonia, dissolved oxygen was an 8, total chlorine was 0, free chlorine was 0, hardness was 425, alkalinity was 120 and pH was a 6.2

My water quality test results as of 9/4/13 are:
Free Chlorine: 0
Total Chlorine: 0
Total Hardness: 7/120
Total Alkalinity: 240
pH: 8.4
Nitrate: 0ppm
Ammonia: .25ppm 
Temperature: 25 degrees Celsius, 76 Degrees Fahrenheit
Dissolved Oxygen: 8

Overall the difference of my ecosystems water quality compared to a lake, there are some very notable differences. The temperature is much warmer inside, the pH is much higher for my tank, as well as the alkalinity. The water hardness was much lower and the ammonia levels and dissolved oxygen were about the same.  

In a river I would expect the dissolved oxygen to be much greater than 8, possibly more in the 10 or 12 range, the temperature would be warmer, probably more closer to a neutral pH level, no chlorine, so almost a mixture of both my ecosystem and a lake ecosystem.