Is it safe to re-introduce two hamsters?

[Risika]

I currently have two female Black Bear (black Syrian) hamsters. They are sisters, and had lived their entire life together. When I purchased them I had them in the same cage and they did great together. One day I made the colossal mistake of introducing one of the girls to a male hamster I was going to mate with her then sticking her back into her cage without taking the time to have the two girls get reacquainted on neutral territory. The dominant girl (Sally) attacked her sister since she smelled like the male, and both sustained minor injuries (while I paid for my idiocy with a nasty hamster bite to my thumb, obtained while trying to separate them). They have been in different cages since then, but I want to put them back together. Right now they are in two CritterTrail cages set side-by-side, so they can smell each other and interact on a limited basis. This is the first time I've actually bought two hamsters from the same litter, so I don't know whether or not it would be a good idea to re-introduce them and hook the cages back together. Is it feasible? If so, how can I go about getting them used to each other again?
Both girls are in wire cages next set so that the bars from both are touching. They can see and smell each other, and have not tried to attack each other through the bars.

 

[xEmmywemix]

i wouldn't recomend it, as it could coz stress and high tension which can lead to injuries and maybe even death. but if you are set on getting these to back together i recomend getting a play pen from pets at home and putting it into 2 square shapes with a hamster in each and see how they get on.

If they run at each other and squeak and bite each other through the play pen, place toys between them to stop them from fighting then remove the calmest one so that you can calm that one down and leave the other one to calm down it's self. but if it does go to plan and they are friendly then keep doing it and when you feel they are ready then open the play pen to full so they can actunatly touch each other. and see how it goes from their. BUT MAKE SURE IT'S ALWAYS SUPPERVISED AS THEY CAN FIGHT AND ESCAPE!

hope i have helped xx

 

[Alysha.Tigs]

Well I have read and heard that hamsters can remember their relatives and all but if I were you I wouldn't recommend it because if they start fighting and one of them gets badly injured or killed you will have to blame yourself. Or they can also get stressed out about living together because they are now used to being apart so honestly i wouldn't try it.

 

[vogonsrock]

Emmys is a great answer, personally I wouldn't try and reintroduce them, as hamsters are solitary animals, and don't mind that they are separate now, the only reason to do it would be because perhaps you feel that they are missing out on being together, I'm sure they were happy when they were together, but they will be perfectly content as they are, maybe even more so.