My first hatch should have failed if you read everything there is. I had eggs given to me. I didn't know that some were already incubated(broody). I turned them up until they hatched(some a week earlier than expected, so not on purpose) I opened the bator a LOT. I had a great hatch overall. The...
I don't add any water unless humidity gets below 30% for days 1-18, then for days 19-21 I put it to about 58-63%. This works great for me and has hugely increased my hatch rate as I was losing a lot of *wet* chicks