30ppm is roughly equivalent to how many bps

[taysh75]

HI,

Any idea on the above?
I am having a 2ft tank. Understand it might not directly related.
Thanks.

[vinz]

Can't tell really. Bubble size even varies with bubble rate. Depending on the growth rate and the number of plants in your tank, you will need different CO2 injection rate to maintain 30ppm. Any replies you get will be anecdotal. I strongly suggest you stick true and tested ways of determining CO2 levels in your tank.

[winston77]

Suggest u use the calculator tool in AQ to find out... Guess PH n KH plays a big part in determining the ppm of CO2 in the tank...