Mix of both out of the 15 set there was a total
of 4 without embryo development 1 early death and the rest look almost full term . I now have 2 chicks and 2 that seem to pass the candle and float tests so I have left them in the bator
So sorry to hear about your hatching problems. There are some great articles on incubation and hatching, including troubleshooting hatch problems, in the Learning Center that I think you'll find helpful, or interesting to read. Fingers crossed you'll get some more chicks from this hatch. I've had chicks hatch on day 25 (one under a broody hen!), so there is hope still