AWESOME! I love a full brooder!! This was your first hatch too was it not? It sounds like you did well either way.... Your hatch is drawing to a end.... You may get another or two hatch but you will start to see curled toes and defects in the very late ones. IMHO, by tomorrow at this time I would call it done. After a day of no hatches I throw the rest out. I will bet a soda that the majority of them hatched in 4 hr window and those are all healthy chicks. Then there was likely a smaller wave a few hrs later.... The tail end is usually where the weak ones tend to be. Its like they time their entrance to arrive in force.... Good luck with your new birds!