Well if you're happy with that solution, why not? That way She can have a happier live, the blues she's harassing can have a happier life and you don't have to stress about someone getting hurt! Good on you! It's tough to make a decision like that :D (I LOVE that fuchsia plant, btw)
I talked to Syriiven and she said she was unsure but she is leaning towards it being a male. I put her in a smaller tank alone with a heater and the other girls are still in the bigger tank. Everyone seems to be doing just fine. Now I just have to find another female who is really a female.
You think if I take her back to the pet store they will let me get another one instead??
I'm sure they will. Just explain that there was very too much aggression from her and that you'd like to exchange her for another. Any pet stare worth their salt will be happy to oblige because it means that you will likely return and you will likely recommend them to people you know. Accepting exchanges is just good business!
That's great! I always ask about return policies before purchasing fish/invertebrates just in case there's a problem with behaviour or if they die in the first week or so. I have yet to find a place that's not good (except Petland for their snails: they refuse to guarantee them, so I don't buy any from there).
I hope you can find a girlie with as much personality as her too!