you will find there is no support here for keeping a "colony" of balls togather. I agree that you should have quarantined her, but after that if you wamt ot keep them togather go for it if they are ruffly the same size there is very little chance they will hurt eachother.

That being said, There are a couple things to consider though, keeping them togather is not for all balls some will become stressed so keep a eye out for that, Multiple hides are needed. Also canibalizim is very rare but has occured. Keeping them togeter makes it difficult to know whats going on with each individual as far as checking stool and stuff like that.

Welcome, Good luck and before you know it you'll have a half dozen snakes and you'll come to the dark side AKA the rack syatem.