no room, her tub is right about his, shes 2000 grams so its not like she's under size. didn't want him in a dirty tub.
You could put him in a box, a pillowcase, have a sibling hold him while you clean etc.
Putting a snake in with another snake while you clean is just not a good idea. (unless intending to breed).
IMO
My name is Adriane Welcome to the Jungle
1.0 Husband
0.1 Banana Pied Ball Python
2.0 Boston Terriers
0.2 Buggs