Any advice would be wonderful. I am incubating my 1st batch of barred rock eggs. I candled them in my homemade candlier and i can see the air sack and a mass in the eggs. I cannot see any veins or anything floating or moving as i have read on so many other blogs, websites and books.....I am worried because I have read so much about the dreaded exploding eggs! I guess I am looking for some advice on what to expect and for someone to tell me what they experienced with dark colored eggs.... Thanks!