Yellow Tang - Orange marks

[Itd59]

Hi

Does anyone have any idea what us wring with our yellow tang? It has developped alot of orange marks on it over the last 2 days!! It is eating fine and behaving normally.
I have attached a picture ( apologies best one i could get)
As always on this forum thank you for the excellent advice and help

 

[Jay Hemdal Verified Community Expert]

Some more background information would be helpful, here is a post about that:

Some Helpful Hints When Posting or Responding to Threads in the Fish Disease Treatment and Diagnosis Section

Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

www.reef2reef.com

That said, this is what I call septicemia. I see it a lot in yellow tangs and sharks - it seems to be a stress reaction. The severity of the problem depends on what is causing the stress, thus the need for background info.

Jay

 

[Itd59]

Some more background information would be helpful, here is a post about that:

Some Helpful Hints When Posting or Responding to Threads in the Fish Disease Treatment and Diagnosis Section

Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

www.reef2reef.com

That said, this is what I call septicemia. I see it a lot in yellow tangs and sharks - it seems to be a stress reaction. The severity of the problem depends on what is causing the stress, thus the need for background info.

Jay

Thanks for the reply. Everything in tank is fine all tests, salinity etc. We've made no change in food habits. The yellow tang has always been in there with a rabbit fish. Approx 5 weeks ago we introduced a lipstick tang. For the first 5 days or so there was a bit of a battle between the 2 tangs and rabbit fish but that stopped. Other than this no idea at all any advice would be great

 

[Jay Hemdal Verified Community Expert]

Thanks for the reply. Everything in tank is fine all tests, salinity etc. We've made no change in food habits. The yellow tang has always been in there with a rabbit fish. Approx 5 weeks ago we introduced a lipstick tang. For the first 5 days or so there was a bit of a battle between the 2 tangs and rabbit fish but that stopped. Other than this no idea at all any advice would be great

That may have been the stressor that instigated this. However, there could be a bacterial component to this - if the redness is spreading that long after he event, you might need to consider treating the tang n a hospital tank with gram negative antibiotics.
Jay