Just noticed my watchman goby has 2 white spots. One between the eyes and one under his mouth. I was thinking it might be a scrape. Any idea what this is???
Looks like a post injury. One nice thing about saltwater fish is their ability to heal and quickly.
Keep an eye on it. Tomorrow you should see improvement and so forth. Should it look worse, you can use either Marine Melafix OR Maracyn 2 to help heal and reduce chance of infection.