Please help me to save my xenia, it's dying without any reason, it got a kind of infection, it's rotten in some parts but some tentacles still pulsating... it's wierd, all my corals are perfect, I have another kind of xenia (green and Blue ) and this one looks perfect... I don't have a ny clue... it can be bacterial infection or maybe a virus!!! does somebody knows about virus in corals??????? I turned on my UV sterilizer two days ago but it didn't help, Please reply whatever you think, Thank you guys.