If the measurements are right, your CO2 level is around 57 ppm. I'm
surprised your fish aren't showing signs of distress. Are you fairly
positive your KH test is reliable?

--
Craig Brye
University of Phoenix Online

"Doug Sheely" wrote in message
...
These are my current test measurements of my 55g planted community tank.
Any
suggestions?

PH 6.9
KH 15
Nitrite 0
Amonia 0
Phosphate 1.0
Nitrate 20

Plant growth is minimal and no fish distress that I can see. I am fairly
sure that my Co2 level is a little high. Co2 is injected at aproximnately
a
bubble a second. small gravel substrate. Magnum cannister filter. 2 - 55
watt pc lights. Thanks in advance for your suggestions to improve plant
growth and overall health.