I have used this the last two hatched and have lost chicks,yesterday 3,and the last hatch 2.I have never lost chicks before after they are in the brooder and eating and drinking.I took it out yesterday and put the heat lamp on them,have not lost anymore.Just trying to eliminate things that I have done different and this is one of them.The chicks are running around and seem healthy then they start chirping loudly fall over and die within a few minutes to a couple hours.This has never happened before and I have hatched a lot.Any other ideas as to why this might happen?