new baby feeding issues?

I recenlty got 5 new babies from a reputable breeder. Ive got 4 of 5 to feed so far. My enclosure conditions are fine and the 5th non feeder does not seem to be ill in anyway althought I am not a vet. My quesiton is that its been almost a month now, and since she is only 3 months old, when should I start being concerned about this?

There are many stress factors that can play in here. The first and biggest is the move. No many Balls will move homes and never check up eating. However there are a scant few that when moved shut down.

I'd try this for starters )if she has good weight and isn't loosing weight) stuff her enclouser with crumpled newspaper and leave her alone for a week to 10 days. Then wait till late at night and offer her a live mouse and wait. If she eats great if not leave the paper in and give her a few more days. Keeping an eye on her weight the whole time.

What are you feeding it? Try feeding it live mice. I have one that will only eat live mice but only if it cant see me. I guess my looks stress the snake.
I wait till its in the hide and it cant see me. Then i drop in a mouse and sneak out of the room. I come back in a little while and the mouse is gone.

Just a quick question, because it wasn't clear in your post - are they all housed separately?

Can you describe your enclosures?

Thanks for the help guys, she is eating now. The crumpled news paper seemed to do the trick. I think she is a private eater also, she will take prekilled but only if Im not there and if she has a lot of paper to hide in. She is shy I guess. The rest are eating like little pigs.