I am having a hard time I got some banty sultan chicks and I am not doing well with them they just dont seem to thrive. I have raised hundreds of chicks so this aint my first rodeo. they all look good next time I come out to check one will be in the middle of the brooder dead. they are not over crowded and not piling on. I lost one to pasty butt but the rest are just dead cant figure out why. any suggestions would be great or are sultans just really hard to raise? all my other banties have done very well