I have a large rock that has been over taken with "ugly" palys. I would like to remove the palys without destroying the rock. It would be impossible to pull all of the polyps off. There are too many nooks and crannies. If I leave the rock out of the water for days will they die? The rock is removable from the tank. Please dont tell me I am a murderer unless you want them in your tank. I would need too much aptasia x to kill them. I could buy a new rock for less. Do I dry them out, boil them out, freshwater them out or freeze them out? I dont want any survivors.