Have to many other corals to put in a butterfly. It's impossible.to get any fish out of my tank. Was trying to find gaudy crabs as well without any luck. I am okay with permanently having zoanthid eating nudi's in my tank.If you want to get rid of aptasia just add klein butterfly fish.
They will eat your aptasia and you can remove it easier than
Adding zoanthid eating nudis. Using a pest to kill another pest is just going to leave you with two pest in your tank.