Today I came home to a real scare. As soon as I opened the door, I was overwhelmed with a low-tide smell. I ran in to check on the tank and luckily everything looks fine... everything except the anthelia that is! I'm at 72 hours and I just started running carbon and the skimmer again. The GSP hasn't opened in a couple days and the encrusted growth is discolored, but I'm not positive that it's dead. The anthelia is breaking apart when I touch it, so I think I'm finally rid of that pest! I'll let the skimmer & carbon do their part for 24 hours and tomorrow I'll be doing a 50g water change. If any of the GSP or anthelia seems to survive, I'll be doing a second round of fluke tab treatment next week.