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Old 11-26-2004, 02:31 PM   #1
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disease in tank

On my way home for break i brought 3 blue green chromis home. One for my tank and two for my friends tank. On the way home one fish died. He had a brownish pinkish stripe on both sides extending from his anal fin area toward his spine. The scales in this area also seemed to be slightly damaged. I decided to let my friend have both the fish. The next morning another fish died and had the same appearance. And then today the third fish died (same thing). Does anyone know what this could be? If it is a disease, will we have to do anything to get it out of the tank or will it just die off?

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Old 11-26-2004, 10:32 PM   #2
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Sounds like it could be Uronema marinum possibley. Hopefully you did not add any of these fish to the display tank?

<<Here>> is an article (online pdf) on Uronema. See if that helps some.

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Old 11-26-2004, 11:03 PM   #3
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thanks for the article. I'm defenitly no expert on fish disease. This seemed to set in very quickly. The fish that died on the way home looked fine at the store and was dead by the time we got home (2 hrs). The second fish to die was swimming around quite a bit after acclimation and the next morning the stripes started to appear and then within the next few hours he was dead.

these fish were placed in the display tank, but they were also the only fish in there. Now the tank is empty besides about 10 lbs of live rock and a dozen or so blue leg crabs...does the tank need to be treated or will the parasite die off without a suitable host?
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Old 11-27-2004, 04:14 PM   #4
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Could have been a parasite or more likely something to do with the water quality of the LFS coupled with being transported. A parasite could kill in a few days but an otherwise healthy "looking" fish should not die on the way home from the onset of parasitic activity. I would lean more towards acidosis.

Always take the safest route though after an unexplained fish death. Since there are no fish in you tank, I'd leave it that way for the next 6 weeks unless you can rule out a parasite.

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Old 11-27-2004, 07:25 PM   #5
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I'm really confused...I don't understand why the stripes appeared exactly in the same place on all three fish. I thought maybe it could be an intestinal infection but there was damaged to the scales in the area of discoloration????
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Old 11-27-2004, 08:00 PM   #6
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Quote:
Originally Posted by mattmku
but there was damaged to the scales in the area of discoloration????
Which is why I suspected the Uronema. Color and scale loss are typical signs. Reddening is also a sign of acidosis.

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Old 11-27-2004, 08:07 PM   #7
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but does it make sense that it occurred in the exact same spot on each fish or would Uronema attack in more random places?
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Old 11-28-2004, 01:22 PM   #8
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It would be purely random discolorations and scale loss although it may appear similar. If they where "exactly" identical on all three fish I would suspect something man made.

Did you notice what equipment was used in the holding tank?

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Old 11-28-2004, 10:37 PM   #9
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i really didn't pay much attention. The store i went to is known by pretty much everyone to be the best in the area. Also, one fish died in the LFS water and then the two others in our water, I can't rule out something wrong with their water but i've done all kinds of tests on our water and it seems fine.
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