Anenome Dilemma

[supersmile]

I have a long tentacle anenome that is fairly large about 6 inches wide that has already split. I have 2 clowns that host in the anenome. I think the anenome is eating my fish particularly fish that are more passive and are not fast swimmers. I have lost 2 bangaii cardinals and just yesterday my coral beauty. Is it possible the anenome is eating the fish because they just disappear and are nowhere to be found??? I am thinking about either getting rid of the anenome (although my clowns live in it) or getting a larger tank (I have a 45 gallon right now). Any thoughts??