If it's a styrobator, I rarely left chicks in because the heating element made me very nervous the more mobile they got. I had several burn their little combs at different times. Maybe that was just me and the style bator I had though. Just something to watch.Well you all I needed practice candling the green egg hatched today , so much for tem more days . Do I leave it in for 24 hr can I put a paper towel in so its feet dont get stuck in the screen . By the way this is to cool .