Good morning, everyone!
Today's tip:
When candling early or candling dark eggs (like many excited participants will be doing) you can use a bright flashlight with a strip of foil wrapped around the beam, with black electrical tape on the outside. This helps keep the greatest amount of light inside, thus flowing through the egg. This also allows the collar to shape to the egg, which prevents that crack of light where most flashlights meet the egg- this crack of light keeps us from seeing as well as we otherwise might because our eyes can't fully dilate.
One more thing- our best vision is actually our peripheral sight, and thus if you look an inch or so to one side when you cant be sure you're seeing movement, you can actually tell whether there's movement a lot better!
Happy hatching, everyone! Off to the muddy mess that my breedery has become!!