Sibling Doberman puppies

Still looking for the right homes... Rehoming these darling Doberman puppies. Bother and sister. They are 16 wks now Sweet temperaments. Love to play with dog toys. 1st and second parvo booster given. 2 doses of dewormer given Fed on blue buffalo with added probiotic/multivitamin supplement I purchased these cuties thinking that they would be accepted by my dogs, since they're puppies. No matter what we try my bull terrier just looks at them like a snack. And I gotta keep them separated. I worry for them, so I can't keep them. Please text for more information