Yellow Tang with brown markings

[Moray26]

Hello. Have a yellow tang which I’ve had since 2020. It’s in a 180 Gallon reef. No issues ever. Been running a UV for years. Noticed his body is showing red markings. Water quality seems good and no issues with other fish. Eats fine. Mix of pellets, seaweed sheets and mysis soaked in vitachem/garlic guard. From my research it might be septicemia?

I’ve ordered seachem Kanaplex. Nervous I won’t be able to catch him and move to QT. If that’s the case. Can I soak their food in it?

Thanks in advance!

 

[vetteguy53081]

Hello. Have a yellow tang which I’ve had since 2020. It’s in a 180 Gallon reef. No issues ever. Been running a UV for years. Noticed his body is showing red markings. Water quality seems good and no issues with other fish. Eats fine. Mix of pellets, seaweed sheets and mysis soaked in vitachem/garlic guard. From my research it might be septicemia?

I’ve ordered seachem Kanaplex. Nervous I won’t be able to catch him and move to QT. If that’s the case. Can I soak their food in it?

Thanks in advance!

This looks to be bacterial but also may be vitamin deficiency. Treat fish in separate tank using seachem neoplex and what foods are you feeding it?

 

[Moray26]

This looks to be bacterial but also may be vitamin deficiency. Treat fish in separate tank using seachem neoplex and what foods are you feeding it?

Mix of pellets, seaweed sheets and mysis soaked in vitachem/garlic guard. Diet hasn’t changed in years. Always remain consistent. Again no other fish showing any signs of anything.

 

[Jay Hemdal]

Hello. Have a yellow tang which I’ve had since 2020. It’s in a 180 Gallon reef. No issues ever. Been running a UV for years. Noticed his body is showing red markings. Water quality seems good and no issues with other fish. Eats fine. Mix of pellets, seaweed sheets and mysis soaked in vitachem/garlic guard. From my research it might be septicemia?

I’ve ordered seachem Kanaplex. Nervous I won’t be able to catch him and move to QT. If that’s the case. Can I soak their food in it?

Thanks in advance!

Yellow tangs often show that redness, but that is usually seen in newly acquired, newly shipped ones. I can't recall ever seeing it in a long term captive like that. The Internet will tell you that this is "septicemia", but that is a serious internal bacterial infection, and many of these fish just get better on their own, so I doubt that it is truly that issue.

Don't soak the food in Kanaplex! That needs to be dosed very carefully, else it can cause toxicity in the fish's kidney. The proper dose is 50 mg per kg of fish mass. I have a way for you to estimate that, but adding it to the water is easier and safer (but that needs to be done in a treatment tank).

If you want to try the oral route, here is the file on how to do that safely:

Proper Dosing of Medicated Foods

Proper Dosing of Medicated Foods Jay Hemdal c. 2020 Oral medications are an excellent way to target internal diseases of fishes. Marine fish absorb aquarium water, so in certain cases, they “drink” enough medication from the water to effect a cure. However, freshwater fish actively export...

www.reef2reef.com

 

[vetteguy53081]

Mix of pellets, seaweed sheets and mysis soaked in vitachem/garlic guard. Diet hasn’t changed in years. Always remain consistent. Again no other fish showing any signs of anything.

Diet is insufficient for this fish. Consider foods such as:
LRS herbivore diet
Formula 2 flake and frozen
TDO Pellets
small plankton
Hikari Marine cuisine
Ocean nutrition veggie diet
spirulina brine shrimp
mysis shrimp
Prime reef
Nori seaweed basted with garlic extract

Add selcon vitamins to foods occasionally

 

[Moray26]

Thank you for all your suggestions! I’ll give it a go and hope for the best!