Spot on Clownfish, Please help identify.

[Eric_]

Hey all,

I have had the tank for about 2 months, fish were added last weekend. Just noticed a spot on the back of my smaller clown fish a day ago.

Has anyone seen something like this?

 

[domination2580]

It looks like a bacteria infection and possibly Brooke. Does it have like a mucus coating?

 

[Humblefish]

Could just be a cut or bruise, but we're always paranoid about brook with new clownfish: https://www.reef2reef.com/threads/brooklynella.247938/

 

[melypr1985]

looking at the tail as well as the spot, I would lean towards an infection, though brook is just as likely here as Humble mentioned.

 

[Eric_]

Well, I have seen his friend pick on him, slightly bigger then he is. And I think its a salt burn.

I typically have been doing water changes on Sunday and noticed that the bottom has unmixed deposits about same size. I dump it in the over-flow which goes down the emergency drain, into the return pump section of the sump. I bet it was ejected into the display tank and hit him.