It's been 5 days since I bought this toadstool leather coral, and day by day it is looking worse. It's polyps have not opened in days, the coral has been gradually shrinking in size, and now theres is this grayish stuff on it? I'm not sure what is it, but I read from my previous thread how it may simply be because it is a new coral, or it could just be shedding. I attatched a photo of it from today, but I don't know much about the signs of corals, so I want to confirm that everything is okay unless it is an issue that I need to address, and hence I did not mark this as an emergency. Any ideas are appreciated!
PS: The tank did have a nitrate and phosphate deficiency, and I've been working to raise those levels.
PS: The tank did have a nitrate and phosphate deficiency, and I've been working to raise those levels.