I made all the mistakes and didn't find out until too late... I think. I didn't have a humidity detector at first and was at about 65% for the first week. Then I was adding purified, but not distilled water. Then I candled a couple of times early on. Then 1 day after lockdown my humidity dropped and I opened the incubator a few seconds to add water. 2 quail had externally pipped yesterday around 4pm but there has been no further progress. Today is day 18. Should I hold out hope and wait a few more days? Super scared