Maybe my experiment with my 4th hatch will be a flop. I started to incubate the eggs, took them by car along with the other eggs at the school. This past Wed, I candled them & brought them home - they looked great, but today’s day 21 & only 1 egg has pipped! Yesterday, I added extra water to increase the humidity, and last night I added water to the sponge container. Maybe they’re just delayed due to the extra fan I added to the incubator has made it too cool? Perhaps the transfer of eggs in the car just delayed their hatching, but it could have also killed any weaker embryos. I guess I just have to wait this one out, but it’s hard as they’re not “on time” like the previous 3 hatches have been.