I'm brand new at incubating ggs and just put a few into the incubator this morning. The temp is just where it is recommended it should be 95.5. However, I have no idea what the humidity level is, so I'm getting a hygrometer today. Is it okay to open the incubator to put in the hygrometer? Where should this go inside? I only have four little eggs in there and the thermometer is on top of them. I've read that people add sponges and things to help with the humidity level, so I assuming you can open the incubator once in a while for these reasons. Also, when candling you would be not only opening the incubator but removing/handling the eggs. So, none of this is going to harm the eggs?? Thanks for taking the time to read and for any help/advice you can give.