Trouble with cats not getting along.

Question
We just got a year old Ragdoll cat.  We had three other adult cats. I've never had problems introducing cats before, but we generally add kittens.

At first 2/3 of the cats were nice to the new one, but the 3rd one hates her. Now 2 out of the three are treating her badly.  They stalk her and back her under the bed and then sit nearby guarding her from coming out.  

The new cat is very loud when she's upset and hisses and yowls when they corner her.  

There have been a couple of times they've actually gotten physical, lately especially with the one male in the house. Early on in her being here, the male was actually sleeping with her and they were fine. . . I don't know if the older female has influenced the others in picking on her or what.

I tried buying a Feliway plug-in but it doesn't seem to have done anything.  We've had the Ragdoll for about 6 weeks.  My husband is tired of hearing the fighting at night and is considering getting rid of her.

I sometimes try putting her in a room by herself for awhile to let everyone calm down. We have 3 litterboxes and separate bowls.  It makes me so sad thinking I might have to get rid of her, but it seems like her life isn't much fun being followed and jumped on constantly.

Answer
Christine,

The trouble is that, when you introduce a new cat to an existing group, there is no way of knowing how the dynamics will change. There is no guarantee they will all get along.

Usually, I would recommend a kitten for such a group.

So, the first thing to know, is the Ragdoll neutered?  If not, this may help.  If so, 6 weeks may not have been enough time for them to work out all their differences.  Sometimes it takes a couple or three months for everything to settle down.  

If things do not settle down, then, yes, you may want to rehome the Ragdoll and hope the others will settle back into some kind of harmony.

Best regards... Norm.