Help with choosing the right anemone.

[GigaFish]

Hey everyone,

I have a 54 corner tank that currently has a 13" condylactis anemone with a clarkii clown hosting in it. Beginning this week, it has already eaten one of my damsels and one of my chromis and I am thinking it is just to big for the tank and they are getting hit by the anemone on accident. I have decided to take it down to the LFS this weekend and trade it in, but I dont want my clarkii to be without a home so I am trying to figure out what anemone would be best to replace it with. BTA and Sebae are the only two that come to mind and I dont know much about either one other than the simple tank requirements. Anyone have any advice on what anemone I should get based on their experience?