I put 42 eggs in my new hovabator and 36 in a used little giant someone gave me that I installed a computer fan in.....I was carefull about the temps and humidity.....I did not expect to have such a great hatch in both bators being my first time....I have little chicks everywhere...my second bator the little giant they hatched all day yesterday and still some are still pipping today....I bet I have had 60 hatched out of 78 or more.....never imagined it would happen