2 dead, normal poop, lethargic with ruffled feathers

[Chickenwala]

I have some 6 week old jap/serama bantam chicks. We bought them with there mother at 2 days old from a farm across town. We put the hen outside about 2 weeks ago. About 4 days ago, found one that was not quite itself lethargic and ruffled feathers. Next morning it was dead with no wounds. Then everyone seemed fine until yesterday we had another with the same symptoms. The poop seems normal no blood or diarrhea. That chick died as well. We have three more looking ruffled but not totally lethargic and they are drinking . I added some Sulmet to the water. We do not use medicated feed. We have them separated from other chicks but they are still in the same area a 12 x 25 garage and we are worried about the remaining chicks. We do go to sales often maybe we picked up something and brought it home. I would like to know what this sounds like if anyone might know.

 

[Judy]

Cocci??? Which Sulmet is a treatment for.

I've read that usually the symptoms are mucousy hamburgery looking stools and ruffled up as if they were cold. You get various degree of grossly bloody stools.

https://www.backyardchickens.com/forum/viewtopic.php?id=368508

https://www.backyardchickens.com/forum/viewtopic.php?id=461910

 

[Chickenwala]

Well I was thinking that but the poop has no mucous or blood even up to them dying. So, I decided I had to do something so I went with sulmet.

 

[Chickenwala]

I have 6 different pens in my garage with chicks ranging from 3 days to 6 weeks they do not have contact with each other but it is close quarters. Should I treat everyone what about the chickens outside all over 8 weeks. What works best for cleaning cages, feeders, and waterers. The chicks that were sick were in with some other chicks I have already started them on sulmet. Any other tips?