Just got a box of 25 chicks this morning. 4 were dead on arrival the rest were taken out of the box, beaks dipped in water and allowed to start eating. At first all looked good and were eating and being chicks. In the past few hours a few have died and I am nervous I may loose more. What could be the problem or cause them to die when at first they were very responsive? I have a brooder, temps are staying around 80 degrees. Also, a few are pretty aggressive and are occasional pecking at others. How can I stop this?