Recently I purchased a CO2 monitor and placed it in my incubator. The first 10 days the levels stayed near the levels of the room I had the incubator in. But after that they slowly climbed and then dramatically jumped from the first pips through hatching. I controlled the levels by opening vents (watch your humidity) keeping the levels under 1,100 PPM (parts per million). My hatch started 3 1/2 days early because the temp was a little high (it's a new incubator so I'm working out the bugs). With the early arrivals I was expecting a poor hatch, but instead I was around
90% with 81 out of 90 hatching.
If I wouldn't have had the CO2 monitor I would not have opened the vents near as much, and as of now I am attributing the great hatch to this.
Next time if I get the temp right I'm expecting 101 out of 100 LOL.:

If I wouldn't have had the CO2 monitor I would not have opened the vents near as much, and as of now I am attributing the great hatch to this.
Next time if I get the temp right I'm expecting 101 out of 100 LOL.:
