He seems to be fine, all other animals are ok, no signs of distress, all eating normally. Water params:
Salinity:1.026
pH:8.2
Am: 0
No2: 0
No3: less than 5ppm
It's a little red spot only on his one side, any one ever seen anything like this before? Google doesn't return anything, my guess is maybe he cut himself hiding in the rocks?