Last weekend I did a set up a couple of nucs with splits. Thought I had eggs in both splits. Did quick check yesterday and no queen cells in the first nuc. Thankfully, the other had two sealed and two open cells so I took one sealed and put it in the queenless one. They are already behaving like a regular hive with lots of foragers coming and going. What a difference in behaviour.
BUT I think I really need to get some new specs so I can see those tiny eggs and larvae. Getting older is not fun sometimes......