I opened the bator this morning and got a big whiff of sulphar (sp?). I sniffed my way through 42 eggs and only one was rotten. I also am wondering if others have chicks but so far all the dark brown welsummers dark blobs are getting bigger. I haven't seen one vein, eye or anything else.just a dark blob that is getting bigger along with an air cell that has gotten bigger. They go in lock down in a week. Time will tell. My others have only been in for a week. I can see eyes in 3 of the eggs...but that's it....they are light green Isbars and Swedish Flower Hens. I see nothing much in the Cream Legbars and the Lemon Orps. The anxiety is killing me.