So my last batch was pretty good 75 eggs set 15 were total of unfertiled and blood rings by the 18th day so 60 went to lockdown and 54 hatched. Fast forward 14 days later and I have 30 chicks remaining, everyday I pick up one or two dead. Don't understand why. They have plenty of space got them a 250 watt heat lamp 20 inches above ground and they have a cool spot in the brooder if it's too hot. I've watched them lay under the heat lamp and also seen them spread out evenly if it's too hot and even walk away to the cooler side of the brooder. They eat show chow from purina and their water is always clean and mixed with Duramycin-10. I always keep an eye out on them to prevent them plugging their vent with dry poop also and still keep on diying. Received 14 silver laced Wyandotte last week from pure poultry and got only one left!!! Received 20 Dark Cornish and 10 NH two days ago and are doing good so far, hope they don't start diying on me. Anybody has had same problem? I understand loosing one or two but loosing 50%~90% is crazy and frustrating. Same thing happened with my silkies only have 1 out of 10 and my seramas I lost all of them..