Yellow Tang with Fin/Gill issue

MustaLine

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Received 3 Yellow Tangs direct from Biota on 11/13/24. Due to a shipping issue they spent an extra day, about 36 hours in the shipping container. Temp acclimated (not drip) and placed into a 20 gallon cycled QT. Discarded the shipping water.

Temp 78
SG 1.025
Ammonia 0
Nitrite 0
1 gallon per day water change from my display AWC discharge.
HOB filter and inside foam air stone filter
Tested daily, never saw an ammonia or nitrite spike. (API)


Very lethargic at first, it took several hours for them to revive, start eating, exploring and so forth. Thought I was out of the woods.

35 days later in observation only QT, no treatments, no dip. 2 of the YT look great, eating frozen, pellets and nori. Fat and happy. One does not look so good. Has a red fin and inflamed gill, breathing faster and I haven't seen him eat for some time. I did not notice the red fin or gills when they first arrived and I thought all 3 were eating after a day or so. Although the one was never quite right. Didn't zoom around with the other 2 and just hung out by himself in the corner of the tank. I don't see any signs of disease at first or now other than this fin/gill issue.


Seems like because of the shipping delay this may be ammonia burn but I would think the other 2 would show some signs of it?

I don't want to put the two in my 210 Gallon display if there is something else going on. Also don't want to needlessly treat the apparently healthy 2.

Where would you go from here?

Thanks for your replies.



 

vetteguy53081

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Received 3 Yellow Tangs direct from Biota on 11/13/24. Due to a shipping issue they spent an extra day, about 36 hours in the shipping container. Temp acclimated (not drip) and placed into a 20 gallon cycled QT. Discarded the shipping water.

Temp 78
SG 1.025
Ammonia 0
Nitrite 0
1 gallon per day water change from my display AWC discharge.
HOB filter and inside foam air stone filter
Tested daily, never saw an ammonia or nitrite spike. (API)


Very lethargic at first, it took several hours for them to revive, start eating, exploring and so forth. Thought I was out of the woods.

35 days later in observation only QT, no treatments, no dip. 2 of the YT look great, eating frozen, pellets and nori. Fat and happy. One does not look so good. Has a red fin and inflamed gill, breathing faster and I haven't seen him eat for some time. I did not notice the red fin or gills when they first arrived and I thought all 3 were eating after a day or so. Although the one was never quite right. Didn't zoom around with the other 2 and just hung out by himself in the corner of the tank. I don't see any signs of disease at first or now other than this fin/gill issue.


Seems like because of the shipping delay this may be ammonia burn but I would think the other 2 would show some signs of it?

I don't want to put the two in my 210 Gallon display if there is something else going on. Also don't want to needlessly treat the apparently healthy 2.

Where would you go from here?

Thanks for your replies.



The gill plate seems to be deformed and may be either from netting Or heriditary as some defects are seen with bioto yellows.
 

Jay Hemdal

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Received 3 Yellow Tangs direct from Biota on 11/13/24. Due to a shipping issue they spent an extra day, about 36 hours in the shipping container. Temp acclimated (not drip) and placed into a 20 gallon cycled QT. Discarded the shipping water.

Temp 78
SG 1.025
Ammonia 0
Nitrite 0
1 gallon per day water change from my display AWC discharge.
HOB filter and inside foam air stone filter
Tested daily, never saw an ammonia or nitrite spike. (API)


Very lethargic at first, it took several hours for them to revive, start eating, exploring and so forth. Thought I was out of the woods.

35 days later in observation only QT, no treatments, no dip. 2 of the YT look great, eating frozen, pellets and nori. Fat and happy. One does not look so good. Has a red fin and inflamed gill, breathing faster and I haven't seen him eat for some time. I did not notice the red fin or gills when they first arrived and I thought all 3 were eating after a day or so. Although the one was never quite right. Didn't zoom around with the other 2 and just hung out by himself in the corner of the tank. I don't see any signs of disease at first or now other than this fin/gill issue.


Seems like because of the shipping delay this may be ammonia burn but I would think the other 2 would show some signs of it?

I don't want to put the two in my 210 Gallon display if there is something else going on. Also don't want to needlessly treat the apparently healthy 2.

Where would you go from here?

Thanks for your replies.





Does the tank have good aeration (not just circulation)?

Both fish are breathing a bit fast, but the one of note does seem to have some deformity to its gills - perhaps it had a developmental defect that is impairing its ability to ventilate?
 
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MustaLine

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Yes good aeration, There is a foam filter with air stone and the HOB filter agitates the surface where the water flows back in. I contacted Biota for advice and they felt it could be an injury either from the QT environment or from the other tangs.

I'm starting to lean towards putting the 2 "healthy" tangs in the display leaving the 3rd in QT for now.

Not sure what to do.
 
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MustaLine

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I'm happy to report the yellow tang must have had an injury. I kept all 3 YT in the QT for another month with no treatments other than Selcon with the food. The fin injury healed and deformity is still visible but much less than it was in the video. I think it ran into one of the PVC pipes in the tank.

All 3 tangs are doing great and getting along well with the existing 2 blue hippos I had in the DT already. One of the clowns, on the other hand, did not behave. She thought she owned the entire 210 gallons. She is now down in the QT tank for a timeout.
 

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