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Old 20-04-2003, 07:22 AM
m walczak
 
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Default CO2 & Surface Agitation Debate-Please Comment!

My pH before CO2 injection over 3 months ago was ~7.8 I rechecked my
PO4- and it checks in at about 10 ppm. Acceptable. I agree that i
should see an increase with two bottles. I added the second one to see
if could get a further drop. Not much. I want to get my co2 in the
area of 15ppm, ideally. One thing that comes to my mind is that the
bubbles being released from the UG filter heads are contributing to
excess CO2 surface exchange and limiting the formation of pH lowering
carbonic acid. What would be the consquences of terminating the use
of the UG filter? Is it feasible to do this?
I am correct in saying that allowing the CO2 to enter into my over
the back of the tank filter that the bacteria would be put in a
comprimising situtation due to the exposure to the forming carbonic
acid? Hence this would not be a suggested manner to diffuse the CO2.
Thanks.