Which is better

[Berynn]

which is better forced air or still air in your bator. I live in Riverside ca. if that makes a differance

 

[Picco]

Forced air keeps the temperature more even throughout the incubator and therefore one can expect better hatch rates. Still incubators ten to have pockets of different temperatures as well as temperature layers, making it warmer at the top and cooler at the bottom.