Wow - 2 did all that . Totally worth their cost!So apparently Aiptasia can eat Berghia. I read that AFTER I dropped one of them right onto the crown of an Aiptasia. I figured I was done for after that, but looking in the tank today it appears the other two have been busy! The Zoa rock is almost bare of Aiptasia, all of the large Aiptasia in my Refugium are gone, and several throughout the tank are in various stages of being munched upon... 2 Berghia (unless the 3rd ate his way out of the Aiptasia that I watched eat him...) in a 125 LOADED with Aiptasia and, after a week probably close to half of the Aiptasia is gone.