Can I OD on DIY CO2?

[jsoong]

Your KH/pH/CO2 is now much more in line with what is expected!

I assume the difference in tank & tap KH is due to you adding a carbonate buffer to tank water. You've got that up to a pretty good level. So I guess you are good to go.

 

[black udder]

Swell!

Now...last question - how often should I test (after initial setup) to make sure I'm not reaching dangerous levels for the fish?

I also understand that I should airate during the night... would it work to run a HOB filter overnight to help release CO2 during the night?

Thanks for all the feedback.