ID fish disease

[Chheng86]

I had this tang for about 3 weeks in quarantine. After that I had moved him into my display system and these spots started appearing. At first I thought it was black ich, but upon closer inspection in doesn't appear to be the case. The spots are now found on 3 of my other fish and I've since moved them all into quarantine. Any ideas on what this is?

 

[Chheng86]

resized

 

[snorvich]

Three weeks in quarantine is not enough especially if purchased from a source that runs copper in their system. By the way, your tank now has the problem not just the fish that have visible symptoms. Picture is not clear enough to say definitively. Ich would look like a sprinkling of salt. Describe behavior of fish please as well as what you are seeing on the fish.

 

[Chheng86]

Fish seems to be swimming fine and eating as well, and the spots are in the skin like blotches. Small and large sizes that you can see in the second photo. They aren't sticking out like grain of salt. Fins are starting to deteriorate as well.

 

[snorvich]

Fish seems to be swimming fine and eating as well, and the spots are in the skin like blotches. Small and large sizes that you can see in the second photo. They aren't sticking out like grain of salt. Fins are starting to deteriorate as well.

Unfortunately, the most probable is Uronema Marinum.

 

[snorvich]

Most likely treatment to be successful for the fish is Chloroquine Phosphate. Unfortunately, there is no fallow period for the tank to eliminate the parasite as it does not have an obligate fish host in its life cycle.

 

[alprazo]

You need to treat the entire system. Looking at the eye, your fish could have velvet as well.

First CP and if not on hand, don't wait, use copper. A formalin dip would be very helpful before treatment. You need to be aggressive in treating all of your fish ASAP

 

[Chheng86]

I have copper available, which I've added to the quarantine tanks. I took another picture of the fish out of the water when I did a freshwater dip. Does it still look like Uronema Marinum?

 

[Deinonych]

Looks more like Black Ich (a turbellarian, or worm infection) to me. Prazipro would be the recommended treatment.

 

[alprazo]

With. The second photo, I agree with black ich

 

[Chheng86]

Yes that's what I had suspected, but it doesn't seem to be protruding out.

 

[ThRoewer]

It doesn't look like the black ich I have seen so far but there is surely room for variations. I'm also not convinced that it is uronema. Formalin dips may be your best bet for now.

If it was my fish I would try to scrape one of those black blotches off (ideally somewhere on the edge of a fin) and look at it under the microscope.

 

[Chheng86]

So after quarantining the tang, the black spots have healed. But I had moved all my fish into quarantine as suggested in case it was uronema. Two of the tangs died in a 48 hour period after being in quarantine for about 9 days. A third fish in quarantine has developed the same symptoms as the other 2 that had died. It's skin is degrading quite rapidly, one of the fish had a chunk of scale missing. It's developed these white spots in a 48 hr period that look like ich as well, but not protruding out like I've seen in ich before.

I've since formalin dipped it in a saltwater bath because it looks like uronema. I'm running prazipro and cupramine in my quarantine tanks.

Any thoughts?