Just curious, how are some of you dealing with this pest? I've had the worst luck for months with it. Tried kalk paste and I can't keep up with them. Tried Aiptasia-X from Red Sea and it seems to make them spread even faster. Added a copperband, doesn't even look at them then died after 2 weeks. Added a file fish. He loves regular food. And added 6 peppermint shrimp and they all vanished on me in the tank. Lol. I even lowered the temp on my tank to 76-77 to slow down their rates. Seems to keep new ones from popping up faster, but they still pop up. I am resistant to using boiling water because I'm scared of damaging my healthy coral in the process. Adding a berghia nudi will just end up as a pricy snack with all the shrimp and the file fish.