The Planted Tank Forum - View Single Post - Affordable CO2 sensor?
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Old 12-14-2012, 06:02 PM   #89
mistergreen
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The co2 controller is a lot more responsive. I set the solenoid to turn off if greater than 42 ppm and turn back on at 40 ppm. I wish I have a clearer log of what's going on but it seems to be on initially for 2 hours, then off an hour then on for .5 hour and off .5 hour subsequent hours.

The fishes are a lot happier. No more late pearling but that's ok as long as the plants get their CO2.
There is slight pearling so the plants are happy too.

Last edited by mistergreen; 12-14-2012 at 06:52 PM.. Reason: update
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