Last week, I purchased 25 Cornish X from Hoover Hatchery. On the first night I lost 2 chicks, the second night I lost 1 chick. They sent me a total of 27 so I think they knew I'd lose a couple. The ones that died the first 2 days hadn't gained any weight. They were tiny. They are now 8 days old! This evening I cleaned out their brooder and they were all healthy and active. I picked up each one of them to examine. No pasty butt, nothing... I just got home (3 hours later) and 3 are dead. I have them in a 4 x 3 ft wire dog crate. I have panels fastened on all four sides so it's not drafty at all. I have a heat lamp maintaining the temp at 85 - 90 degrees. At times I thought it appeared to warm because they rarely went into the center. My routine everyday is: Mornings - clean out waterers and give fresh water, give them more food. Evenings - clean out waterers, let waterers soak in hot water to clean, give fresh water and clean out food tray and give more food. I purchased a batch in April and didn't lose one chick following this routine. I'm feeding them the same food, Dumor Chick Starter from TSC. What do I do?