Whats on my rabbitfish??

[Julie kerley]

I woke up this morning and saw this on both side of my rabbitfish. Any ideas?

 

[ISpeakForTheSeas]

I'd suggest reading through the link below (particularly the "Aquarium Parameters," "Water quality," and "In-depth Information" sections) to figure out what info you can share here with the #fishmedic to get the best diagnosis and treatment advice possible:
https://www.reef2reef.com/threads/s...sease-treatment-and-diagnosis-section.775547/Also, for future reference with these sorts of issues, posting in the forum linked below can get you help faster:
https://www.reef2reef.com/forums/fish-disease-treatment-and-diagnosis.771/

 

[Jay Hemdal Verified Community Expert]

I woke up this morning and saw this on both side of my rabbitfish. Any ideas?

Tough to see clearly. It could be hypermelanization, where a fish's skin gets damaged and then produces melanin that in turn creates black marks.

More history is needed as per the post above.