Coral Angle Beauty Fin Rot

[ujjwal009]

Hi , I am new to the saltwater hobby. Currently I have a 60G tank setup .
I have a coral angle beauty with few other tank mates. Coral beauty was doing fine until I noticed some portions of back fin damaged.

Wondering if this is a fish disease or some aggression by other tank mates?

Eating well , swimming well and no other signs of stress.

 

[Jonathan99]

There is a good chance that it was aggression from other tank mates because it looks like the damage is only located on his tail. It almost looks like bite marks out of it. I would keep a close eye on tank mates and see if there is any aggression going on

 

[ujjwal009]

Quick update , Day 2 since viewing damaged fin :

eating yes
Swimming yes

Hopeful the little fellow recovers !
A very weird observation , my algae Benny seems to very aggressive towards coral beauty from time to time .

 

[Jonathan99]

I wonder if the coral beauty is munching on his algae lol. Maybe try putting some nori in the tank?