I've had my hammer head coral for about 8 months and for some reason it's retracting away and disappearing it started with a quarter disappeared and now 3/4 are gone, I have a little diatom problem which I'm trying to solve with assistance for my local shop but I think when I added the things he told me it retracted more, my salinity was a little high which I've been bringing down slowly and its basicly back to where it should be, also nitrates have been brought down as I have done water changes and re tested nitrate levels but I dont know what yo do with my hammer head it doesn't want to get any better. I have attached before and after of my hammer head