Sudden brown spot on tang

[rwreef]

Hello,

A buddy sent me this pic of his tang and this brown spot appeared over night. Any thoughts on what it may be? @Humblefish [USERGROUP=61]@ReefSquad[/USERGROUP]

The only other fish in aquarium are several clownfish. Tang is eating and acting overall normal.

Thanks!

 

[nuxx]

Wound?

 

[vetteguy53081]

Hello,

A buddy sent me this pic of his tang and this brown spot appeared over night. Any thoughts on what it may be? @Humblefish [USERGROUP=61]@ReefSquad[/USERGROUP]

The only other fish in aquarium are several clownfish. Tang is eating and acting overall normal.

Thanks!

View attachment 2944069 View attachment 2944070 View attachment 2944071 View attachment 2944072

This clearly looks like a bite mark from another occupant with shape of a bristle tang mouth. While it appears to be mild infected, can develop worse and I would quarantine and treat with seachem Kanaplex or Neoplex to assure it goes in the right direction.
What other tank occupants do you have? Only other possibility is a sting from a fish such as Rabbitfish

 

[4FordFamily]

Looks like an injury of some sort (perhaps from coral or scraping against a rock). If it's acting normally I'd just feed well and keep the water quality high

 

[rwreef]

8 small clowns ( under 2") lawnmower blenny and sunset dottyback. Only one large enough to make a bite may be lawnmower blenny

 

[Jay Hemdal]

Could have originally been an injury, but some external bacterial infection grow in a circular fashion like that (Vibrio, Pseudomonas).

As long as the fish isn't showing any other symptoms, it could just be superficial.

Jay

p.s. - the lawnmower blenny may have been the original culprit....

 

[vetteguy53081]

8 small clowns ( under 2") lawnmower blenny and sunset dottyback. Only one large enough to make a bite may be lawnmower blenny

Lawnmower blenny - suspect