I keep my CO2 between 26 ppms and 40 ppm's. Or, I should say the CO2 system keeps itself regulated so that it stays at pH of 6.9 (plus or minus .1 1/2--never believe the ads that say + 0r - .1 lol.) giving me the 26-40 ppm's.
Hrm? How do you figure? OH ROFL! I mixed my numbers - - fixing in original post
pH 7
KH 6.5
CO2 18.294
As of this morning:
pH 7
KH 6
CO2 16.886
Glad I'm going pressurized soon. I just can't get this tank balanced or the pH down enough. I think I might try using a gang valve and running DIY two bottles at once.