Hi, I was wondering if anybody hatches without a hydrometer. I just followed the instructions on the incubator as to how much water to put in at what time. This was my first hatch and all died . I have 9 copper marans going on lock down tonight, and I have ameraucanas and silkies on the genesis incubator. I hope a few will hatch . This is my first time and it's starting to be a not so good experience. all the dead chicks where fully developed .