How accurate is CO2 chart?
I recently started using pressurized co2. I have a bio-wheel on my tank so I thought it would take a lot of co2 to reach the ideal level, but in my eyes, it didn't. I'm not sure how many bpm is coming out (I lost a part of my bubble counter so I can't hook it up), but to me it seems to be on low.
My perameters are at PH 6.8, KH 6, GH 8. Originally, I had hard water at PH 8, KH 10, GH 12.
So according to the Chuck's page, I'm at approx. 28.5ppm of co2. It says that's dangerous for fish, but I don't see the fish behaving as if he's stressed. I realize that recently, people found that the initial thoughts that 15ppm was idealistic amount could actually be raised to 20-30ppm without ill effects on the fish. I don't intend to raise the co2 purposely, but say it was raised above 30ppm to like 33ppm. Would this kill my fish? If not, which is at fault here; the test being incorrect, the chart being incorrect, or the thought amount of co2 to be safe incorrect? How do we know which is right and which is wrong?