My husband may have fried his entire hatch, he bumped the thermostat and didn't realize. Not sure how hot they actually got, but hot. That was Sunday morning and he got them back down to correct temp. today I decide to try the float test to see if I could detect life. They are at 15 days. I half filled the sink with 99.5 water then carefully lowered the egg in like I've done before. When I let it go it just sank instead of bobbing at the surface. I pulled it out wiped it mostly dry and tried another one. Same thing, it sank. To early? Or dead eggs?