So last year I put some test zoas in to see if the asterinas I had were the evil variety. They are. I am now about ready to put more coral in but I need to get rid of these little b@stards first. Now I know a harlequin will clean up the tank eventually, but I'm not interested in keeping them long term and I would have to do something with my melanarus wrasse for however long that took. Are there any other predators or solutions I might not know about? This is a 120g tank.