Nice hatch for you though.
Give the chick some baby vitamins without iron. I give them a drop on the beak in the morning and one in the evening. It may be a good idea to separate it too.
I hope the chick makes it!
I'll try and get new pic they already look different. I think one is a Sulmtaler and two Bresse although not sure on that as one of them has black spots on its wings. Going to go back to breeders pictures and see if I can find one that looks like it. I did post a pic they were in a plastic box with paper towels. I'll probably win the cutest picture award with that one.
There are Splash Bresse now.