Help!

[FreshFish]

My friend's Archer fish has an un-identifiable thing on it! He asked me what it was, but I had no idea. I told him we can trust you guys to help us out. Thanks!

Yeah... it's ugly... Thanks for any help!

 

[Roan Art]

Tumor or cyst from the looks of it.

http://www.fishpalace.org/Disease.html

Check Pandoras and see what they say for treating. I doubt there is a treatment short of surgery, however.

Roan