Can anyone please help identify what is happening with my new zoas? They have only been in the tank for a few weeks. They did well in the beginning but started showing signs of a white slime/film on them. Went on vacation over the past week and came home to the middle zoa covered in white bubble like substance. Is it melting or is this a fungus? Do I need to be concerned about the other zoa's on the rock? All other soft coral are doing well. There is a red scarlet hermit in the tank that could be pestering them, as well as a peppermint shrimp. Other livestock includes 2 small clowns and a lawnmower blenny. Any help you can give is greatly appreciated.