Info about DC please.
I found out a way. There's a cross chart of pH and KH that measures CO2. I just need to buy a KH test kit. It isnt as accurate as a drop checker but it still should be accurate enough to give a good idea where you are at.I haven't went pressurized at yet myself (still need to get a couple of components) but...without a drop checker, I'm not sure how you can accurately tell the level of CO2 without bothering the fishies.
Thats good info too . Are the results from both the DC and Chart completely off? If its that much of a difference I might really have to invest in a DC :|Good info...I'll have to compare with my latest water tests to see how acurate it is. I'm suspicious already as one tank I'm thinking of right now (according to the chart) would be bad for the fishies even though the drop checker says Good to go. ;o)