What's wrong?

dirt1008

New member
Wondering what's wrong with this favia. Looks like algae but I'm pretty sure it's coming from the coral itself.
2a5uzy7u.jpg
 
What's wrong?

There's no algae anywhere else in the tank, must have came with the coral. How can I fix it?
Calcium 460
Phosphate 0
Nitrates 0
 
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