I have done chicken eggs, my first experience was 2 hatched out of 20. I was checking them all the time. My second I candled at about 8 days only opened to fill water tray and take the turner out for lockdown. Candled before lockdown. I added a small bowl of water filled all trays opened the second vent and stuck a damp wash cloth over to the side. Never opened untill second morning to take fluffy chicks out very quickly. One other thing I did was make it not as easy for the first chick to push around the other eggs while hatching. I had 26 out of 28 hatch they kind of lingered hatching out from 1st afternoon till second afternoon. I am now trying peafowl eggs. My electricity went off second night they were in the incubator can see why one of those alarms might be well worth investing in. I was just sick. I have seen many claim these eggs should lay on their sides. I found a picture to attach plastic canvas on turner to hold eggs, I did this. It also said that isn't enough for peafowl eggs they should be turned 180 degrees end over end 3 to 5 times a day. Not sure myself what is right. I candled today 8th day. I seen air sac well developed and black blob like the chicken eggs, but no veins. These eggs are darker so maybe the veins aren't as visible. Will continue to cross my fingers. Believe me I feel like a new mom waiting on her first child. I do think the second hatch of chickens went better because I left them alone. I have 6 more peafowl eggs coming for second incubator. These are being shipped so that is another obsticle. It might end up to be more profitable to buy the peachicks we will see. lil zoo