I set six call duck eggs in my brinsea mini advance at 10:00 a.m. on March first. Is this day one or day zero? I candled eggs this a.m. and I saw veins and what looked like a tiny black blob beating. could this be a heartbeat or am I crazy? Don't worry i've been called crazy before. Thanks i am sooo excited. I didn't realize until after I purchased the call duck eggs that they were hard to hatch. Or so I read. We'll see so far so good. It is also my first hatch ever.