Once they externally pip it can take another 48 hours to fully hatch. Just check about every 6 hours or so & make sure they are making progress on their own. Some will sit there with just the pip & rest for up to 12 hours before doing anything else. This is normal & no cause for panic. They need time to absorb the veins & yolk sack before they finish hatching.They are beyond internal pip they have already pipped the shell externally. Does that change anything or should I intervene or leave alone. Sorry for being so unsure, I just don't want to hurt them. Can I open the incubator and check them individually?