I was too stressful for me to have to worry so much...I couldn't get the temp or humidity right and found it really frustrating. I know some people love them though. I love my Brinsea because all I have to do is follow the directions and I get chicks. I use my broodies whenever possible though. A lot of times I will put some in the incubator and some under a broody just in case there is an issue with one, then I still have the other.
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I hatched hundreds of chicks out of my old styro. The trick is to have quality instruments to monitor temps and humidity and to leave it alone once its set. If it doesn't hold look to the ambient temps around it, is is colder at night? Hotter during the day? If it still is not stable then the wafer needs replacement.
I didn't like the Brinsea so I sold it and bought a turn-x. Doesn't have the space of my old styro but that's fine, my hens do enough hatching for me.

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I hatched hundreds of chicks out of my old styro. The trick is to have quality instruments to monitor temps and humidity and to leave it alone once its set. If it doesn't hold look to the ambient temps around it, is is colder at night? Hotter during the day? If it still is not stable then the wafer needs replacement.
I didn't like the Brinsea so I sold it and bought a turn-x. Doesn't have the space of my old styro but that's fine, my hens do enough hatching for me.