Green Chromis - brown spot - looks like an injury

[buzz]

I put 3 Green Chromis in my 60g last Friday. One was a bit larger, and looked like he had been in a scrap or two...he had some scales that looked like they had been nipped at, and regenerated, etc...he also had a bit of a discoloration along his right side on his abdomen, about the diameter of a pencil eraser.
The spot is still there, kind of brownish red, and a few scales are lifted.
Is this something I should be worried about? Or is he just healing from something.
All 3 are swimming and breathing fine. They are eating, and schooling as well.
I wish I could take a pic, but I need to borrow a digital camera.

 

[beth]

If he suffered some aggression, then there is not much you can do except see if he heals up....and, of course, separate him for the aggressor.

 

[buzz]

If there was any aggression, it was before I put him in my tank. He is only in there with 2 other green chromis right now. I haven't added any other fish yet.
I guess I'll just watch and see. I am not sure if it was from aggression or something bacterial. That is what my concern is.

 

[buzz]

Well, it doesn't matter now.
I watched him for a few days, and the scales fell out over that spot, it started looking a bit worse, like the other Chromis' were possibly going after him as the weakest. Yesterday he stopped schooling with them, and started getting lethargic. This morning when I woke up, he was dead. So, I guess survival of the fittest works with fish too...

 

[beth]

Yep, that does happen with chromis, even though these fish are supposed to be pretty mild mannered. I'm having that problem now with a new set of 3 I added to my existing 3. However, he's holding his own. The first set of 3 I added, the small guy was sorta in that pecking class---low man on the todem pole---but he survived the brood and is doing fine now.
We'll see how this one does now.

 

[buzz]

So you think that it could actually have been bacterial? I have been watching the others, and they have no spots, and appear to still be doing fine.

 

[buzz]

Thanks! I have since replaced the dead chromis, and all 3 are doing fine at this point. I did not know about Uronema and Vibrio. I will keep an eye out for them in the future.