I had this experience last night. This is my 2nd experience with the Little Giant 10200 incubator. So far 15 chicks had hatched from 23 viable eggs. Yesterday was day 22 or 23 and hatching had died down. So I floated the 7 remaining eggs. 2 floated, 5 sank. I put all back in the bator just to be sure since there was one piping in there already that needed more time. Last night I candled ALL the eggs. The 2 floaters had no movement and they did not peep when tapped. BUT, one of the sinkers was quite noisy and active in his shell. So once again, I put them all back in the bator while I feverishly searched for clues on what to do. After all, I thought, doesn't an egg need an air pocket to float....and is the little guy going to suffocate? Fortunately, he pipped later that night. This morning the hole is much bigger and 2 more eggs are opening. Any thoughts? P.S. I think my eggs are overdue because the temperature was too low. I'm thinking the Little Giant thermometer was right after all, not the other 2 I used for comparison.