Today was hatch day for my RR's. I was concerned at lockdown because I couldn't see any movement. Today I spoke with a man at the farm store and purchased a new digital thermo with humidity display. There was a little temp diff in my new and old gauges. The new one was reading under 100 and the old non-digital was at 101. My humidity was spot on. So I candeled two eggs and no movement. Went ahead and broke them open and there was no development at all. Candeled all others and the same thing. Most of them were very wattery and the yoke had came apart. Some were even gel like very thin gel.... Is there any reason for not developing other than infertile eggs. How low of a temp is too low? I have 4 bantam eggs in there moving right along.