Just curious which test kit do you use to measure c02?
Thanks
"default" wrote in message
ups.com...
I just started a C02 setup with a bottle. I've closely monitored it
for two days and it looks like this:
Initial parameters:
pH 7.4
KH 40 ppm
C02 calc 2.6
At the end of the first day, in the evening:
pH 6.7
KH 40 ppm
C02 calc 13.1
5:00 next morning (C02 is off at night, 1 hour after lights out)
pH 7.0
Later that day pH dropped down to 6.6 for a C02 calc of 16.5
Is a swing from 7.1 to 6.6 on a daily basis what others see? Should I
keep the C02 on all night long? How much lower will I expect the pH to
drop if I leave it on all night while the plants don't eat it?
thanks,
steve
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