We've successfully gotten to day 23 with our diy incubator. we have a 2 day old chick and a chick that pipped all day yesterday and finally emerged around 3-4 am. One more egg sits, no pip. I've read that you can float them in water, to see if they are still viable, but i dont know when that point is? The "Raising Happy Chickens" lady has said that she's had a chick wait til day 25 to hatch, so im not worried, but kinda worried. this is my first season with chickens ever and our first at home, diy incubator (any chicks were awesome!) any ideas or suggestions?