Hi all, I have just found a large nest of 52 eggs. The thing is that I only have 3 or 4 Guinea hens so I want to know how to check for any rotten ones. I tried float test and every one of them sank. I know that they are only good for 7 and I wanted to check them before I incubated them. Does anyone have any ideas on how I can go about this. Cheers in advance.