I recently got a 265g tank and had started to stock it with fish. Two of the fish i got were a foxface and a gem tang. I got both of them from the same tank at the same store and had added them to my tank about 24 hours ago. Today, i noticed my gem tang starting to flash against the sand and rock and i immediately got concerned that one of the other fish i had gotten from a different source and had added at the same time had ich and i needed to start copper (which i planned to do anyways once all fish were eating as these were the first fish in a fowlr tank.) But then i noticed it was only scratching one side and then noticed as single white dot under the tang's fin (which is hard to see on a fish with white dots). My tang wasn't acting this way last night or earlier today. Is it possible that my tang ran into my foxface and got stung or is this a sign of a disease i need to tackle?
Another note, i keep watching my gem tang swim up to my coris wrasse and it looks like they're asking them to clean them.
Here's a picture:
Another note, i keep watching my gem tang swim up to my coris wrasse and it looks like they're asking them to clean them.
Here's a picture: