Hello, I am new to raising chickens. Our Family started about a year ago with a couple of hens. We have eight hens now and are getting 3-4-5 eggs a day. I was just wondering if anybody out there could tell me how long the eggs will keep in the fridge and if anyone could tell me about marking the eggs to keep track of them. I started marking them last week. I hope that it will be OK to do so. I am a little worried that the ink might leak through the shell. Thanks.