They all died by day 17 unless pure oxygen was added to the bottom of the cup. They also needed calcium lactate and distilled water in the bottom of the plastic film before the pre-incubated egg was carefully cracked into it.
Nothing on video is ever as easy as it looks: https://www.jstage.jst.go.jp/article/jpsa/51/3/51_0130043/_pdf
Pictures/Videos can be deceiving, thanks for the article. Didn't think it was all that "easy/simple"....
