Not exactly sure what this is

[Mushroomsyo]

At first there was a nip in the middle of the tail fin that I thought was due to aggression, however, a spot has developed in the upper right corner of the tail fin and I'm not exactly sure what I'm looking at. She is still eating as normal.

And ideas?

 

[vetteguy53081]

May be fin ray damage and there is evidence of aggression from one of the tank mates and I’d likely how it has healed

 

[Jay Hemdal Verified Community Expert]

At first there was a nip in the middle of the tail fin that I thought was due to aggression, however, a spot has developed in the upper right corner of the tail fin and I'm not exactly sure what I'm looking at. She is still eating as normal.

And ideas?

Looks like a bite to me, what other fish are in with it?
Jay

 

[Mushroomsyo]

Looks like a bite to me, what other fish are in with it?
Jay

The only other fish in the tank are my pair of clowns and a yellow watchman. The clowns completely ignore the Helfrichi. I have seen the watchman chase away the Helfrichi from the opening of his burrow but thats about it.

 

[Jay Hemdal Verified Community Expert]

The only other fish in the tank are my pair of clowns and a yellow watchman. The clowns completely ignore the Helfrichi. I have seen the watchman chase away the Helfrichi from the opening of his burrow but thats about it.

Watchman’s can be sort of bitey when defending their burrows, I bet that is it. Two bites would cause the two marks on the fire fish.
Jay

 

[Mushroomsyo]

Watchman’s can be sort of bitey when defending their burrows, I bet that is it. Two bites would cause the two marks on the fire fish.
Jay

Ok gotcha. Thank you for the reply!