what's this on my filefish?

[Bunnyspit]

Hey guys, I was looking at my filefish today and I saw this growth on his tail. I dont know if he got into a fight, but hes never been agressive to any of the other fish and none of them have every been agressive to him. I'll post a picture of him, but it's not a very good picture. He doesnt really like when I shove my phone near him lol

 

[Bunnyspit]

Its on his tail, it kinda looks like a tumor. But I'm not really sure

 

[Frtdrmrose7]

It’s really hard to tell from the pic. Does it look like cauliflower? Look at this thread and see if it matches.

https://www.reef2reef.com/threads/lymphocystis.257461/