2 baby sisters together

I’m getting 2 baby sisters (Chloe and Claire), they hatched about 3 months ago, and can I put them together in a tank for a while because they are so small?
I have a 6 month old male (Connor) that I know I can’t put him with them

I know I can’t feed them all at once, but I have a box I use for Connor, can I use the same box for my girls?

They should be fine for a little while. Using the same feeding box shouldn't be a problem. However, how long is a little while? They will be stressed and one will dominate the other, although you may not notice.

The sooner you can give them their own cage, the better. ;)

A day or 2 shouldnt be an issue but ya u are going to want to house them in thier own cages. Sharing the same cage will stress out the snakes and it could lead to issues later on

It's not recommended. If Chloe gets sick, how do you know she won't spread it to Claire? Or how will you know who went to the bathroom? They will compete for the best hide, the best temps. Just house them separately :)

When I first got Connor I put him right into a 40 gallon tank and I think he was stressed, because he never came out of his hide he came with and it took him about a month to go into his new hides
I was going to put them in another 40 because they are coming in a box I don’t want them to freak out because everything is different at least they would have each other, or could they care less about it?

Do they really need a 40 gallon or could I down size to 20 Longs?

They aren't social animals so they could care less about having one another. They will feel more secure if you downsize the tanks, definitely. A baby BP does not need a 40 gal.