New Blue Tang with injury

KoalaHunter · May 20, 2023

A mark or injury appeared on my blue tang 24 hours ago. Can anyone help diagnose?

I bought a blue tang one week ago, introduced him into an empty tank with two clowns, six line wrasse, and jester goby. No aggression from any fish towards each other.

No change is the tang's behaviour. Swimming around fine, eating fine. The mark hasn't gotten larger since I first noticed it.

The first photo is when I first noticed the mark. The second and third photo is roughly 24 hours later.

threebuoys · May 20, 2023

I fear this may be uronema. Unfortunately, prognosis is very poor if that proves to be true. Search for a thread or article by @Jay Hemdal on this topic for an excellent description of the disease and what to expect.

Jay Hemdal · May 20, 2023

While it could be uronema, it might also be a bacterial infection. There are even cases of the two infections being mixed together (Uronema sometimes feeds on bacteria).

While the lesion may not have grown larger in the 24 hours, it does seem to have gotten worse over that time.

With the soft corals in the one image, I am going to rule out water quality issues like ammonia.

Do you have a tgreatment tank to use if need be?

Jay