I got about 10 frags from an online vendor Oct 27 while acclimating them they opened. Opened again saturday and come sunday, no longer opening. Now we are more than a week into this and they are still not opening. All water parameters are ideal Ammonia 0 Ph 8.2 nitrite 0 nitrate 0. Other zoanthids that have been in the tank are doing well not just the new ones. I also noticed that several looked like they were covered in a white fungus and have been removed. Smelled dead!! Does anyone have any ideas on other things to try? I did an iodine dip as the vendor suggested and still nothing. And calcium is at 450ppm.