I'm just starting out and have never raised guineas before. My chick was fine , then it started to sulk and sit around puffy. It ate and drank a little. When I separated him he seemed to get more active and chirped . This lasted about 2 days. I put him back with the other chicks and he sulked and puffed up again. So I separated him again. One the next day he was dead. I can't figure this out. We have a water softener, is there any way this is what could have killed it.? Maybe I need to give them bottled water?They are probably about 4-5 wk old.