The fairy wrasse will probably be eaten, either by the lionfish or the Lunare. In time, the Bluehead will probably end up in the lionfish as well. Ive seen this happen before, a 4" volitans swimming round with a 4" Bluehead in its mouth. It was spat out, but there wasn't much of a blue head left on it. Remember, Lionfish have deceptively large mouths!