"Mort" wrote in message
news
Hi all, I just finished my first DIY CO2 injection. I am having a little
trouble regulating the bubbles at such low rates. How many bubbles per
minute should I be going for? I have 6 bpm right now. Is that too many?

TIA

~Mort




Mort,

Regulating DIY CO2 is futile. DIY CO2 production starts off slow - ramps
up - peaks - ramps down etc. Very hard to regulate. How big is your tank?
DIY only works for tanks less than about 50 gal. You should measure the CO2
concentration by measuring your KH and PH levels. Lower PH means higher
concentration of CO2 in your tank. Chuck Gadd has a great page explaining
all of this and a straightforward chart that explains the relationship
between CO2, KH and PH.
http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm

HTH,

DJay