A dozen eggs went into the incubator and 9 chicks came out. I’ve moved the nine chicks to the brooder this afternoon (yesterday was day 21 and they hatched yesterday and this morning) I opened the incubator very briefly to remove the chicks and put the lid back on, brought humidity back up pretty fast. No pips on the last three whatsoever. How long do I wait and how long before they might burst if they are bad? Should I try to candle them for movement? If so, when?