A bit hard to see but ill add pictures of what it normally looks like. Was fine yesterday and this morning it seems around 1/4th of its polyps are curled up but still plump while the rest of it is extending.
Salinity 1.027
Calcium 440ppm
Phosphates 0-.25
Nitrates 0-5 (need feeding to add more just did a water change 2 days ago)
Ph. 8.1
KH 179
This is his usual look. If lighting looks different its the camera flash.
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