Guinea hatching -- wait or help?

[rivkas]

Oh and there were a few that still have beating hearts in there, so I'm leaving them alone. I hope they're not shrink wrapped....

 

[rivkas]

Of the 18 eggs, we have 4 live keets. 4 hatched and lived - I had to help 3 after 24 hours post-pip, no zip, fading tweets. 6 hatched but didn't live, four(?) got their heads out and then didn't go further (should I have popped them out? would they have died anyway? I'll never know), 2 were completely hatched but didn't get up and move, just laid there and died. One never pipped but was fully formed -- I think malpositioned / air cell on wrong end. I'm wondering if we had so many die because of the rotten egg that was in there. I candled twice but I still have trouble telling what's what. So 7 eggs were early death / halfway deaths that I couldn't tell from candling. Two was either VERY early or unfertilized. I'm really wondering about that rotten egg. Once I found it by candling (there was no smell) and removed it, the last 3 eggs survived. Only 1 did before this (and 6 had died). Coincidence? Or evidence that I should not have intervened at all?
Can a rotten egg make bacteria through the shell that kills the other keets?? Anyone know?
Keets are so sensitive and die so easily, it's rather frustrating... at least so far.