So sorry about your chicks. The first one might have aspirated crop contents when it was upside down, having the crop massaged, or having CPR. It is hard to know exactly what is wrong. I would try to get it to take some water with electrolytes on it’s own by dipping the beak into water for half a second, then letting it swallow, then repeat. Do not massage the crop. I would try to get some Poultry NutriDrench or vitamins with electrolytes to give if it makes it through the night.