Brown spots on yellow tang

gideon2086 · Mar 20, 2021

I noticed brown spots on my yellow this morning for the first time. He's in a mixed reef tank. There has been no death and the parameters have stayed where the parameters are stable. I had a no3 spike recently and as a result started to dose NOPOX. I feed Nori three to four times a week. He eats a mix of pellets and mysis otherwise. Please let me know if you know what this is and what, if anything, I should do.

gideon2086 · Mar 20, 2021

@ReefSquad

mehaffydr · Mar 20, 2021

Looks kinda like the start of bacterial infection in the picture it looks kind of reddish like inflammation

gideon2086 · Mar 20, 2021

mehaffydr said:
Looks kinda like the start of bacterial infection in the picture it looks kind of reddish like inflammation

That's the lens. It's definitely brown (at the moment)

mehaffydr · Mar 20, 2021

I still think Bacterial Look at this thread

EMERGENCY - Yellow Tang had brown pathches on body

My yellow tang starts to have these brown patches near its tail, and some near its eyes.. It has been in my tank for 1 months, was doing great until few days back.. It's eating well, i'm feeding it Formula 2 pellets and NLS and mysis..I tried to feed it nori but it's not even getting close to my...

www.reef2reef.com

gideon2086 · Mar 20, 2021

mehaffydr said:
I still think Bacterial Look at this thread

EMERGENCY - Yellow Tang had brown pathches on body

My yellow tang starts to have these brown patches near its tail, and some near its eyes.. It has been in my tank for 1 months, was doing great until few days back.. It's eating well, i'm feeding it Formula 2 pellets and NLS and mysis..I tried to feed it nori but it's not even getting close to my...

www.reef2reef.com

Thank you. I'll start soaking mysis and nori in kanaplex and hope for the best.

mehaffydr · Mar 20, 2021

@jayhemdal
Maybe Jay can help with more info I only know what I read on R2R he is the expert

vetteguy53081 · Mar 20, 2021

Red streaks or blotches in Yellow Tangs are due to bacterial infection. This is often due to water quality. Often just a series of water changes to improve water quality, along with an examination of the filtration system and necessary improvements for long term stability, is sufficient to clear this up in several days. What improvements?
Starting with diet and often a vitamin deficiency, Feed the following foods at minimum:

Nori seaweed basted with garlic extract
LRS herbivore diet
spirulina brine shrimp
Formula 2 flake and frozen
mysis shrimp
small plankton
Hikari veggie diet

Add selcon vitamins to the foods 2-3x per week and on alternating days garlic extract to the foods for stamina and immunity health
Monitor ammonia-nitrate and salinity;
Stress will also cause this, and again. . . focus on water quality.

Should it become infected which I doubt, maracyn 2 would be a good treatment.

gideon2086 · Mar 20, 2021

vetteguy53081 said:
Red streaks or blotches in Yellow Tangs are due to bacterial infection. This is often due to water quality. Often just a series of water changes to improve water quality, along with an examination of the filtration system and necessary improvements for long term stability, is sufficient to clear this up in several days. What improvements?
Starting with diet and often a vitamin deficiency, Feed the following foods at minimum:

Nori seaweed basted with garlic extract
LRS herbivore diet
spirulina brine shrimp
Formula 2 flake and frozen
mysis shrimp
small plankton
Hikari veggie diet

Add selcon vitamins to the foods 2-3x per week and on alternating days garlic extract to the foods for stamina and immunity health
Monitor ammonia-nitrate and salinity;
Stress will also cause this, and again. . . focus on water quality.

Should it become infected which I doubt, maracyn 2 would be a good treatment.

Thank you!

Rogueaquariums · Mar 20, 2021

mehaffydr said:
Looks kinda like the start of bacterial infection in the picture it looks kind of reddish like inflammation

I would agree..

Jay Hemdal · Mar 20, 2021

Indeed, that seems to be a septicemia that yellow tangs are prone to. I've never been able to figure out if it just shows more clearly on yellow tangs, and other fish get this, but we just see it on them, or if yellow tangs are just prone to it.
Treatment is tough - best option seems to be a broad spectrum, gram negative antibiotic in a treatment tank. Furna-2, Neoplex, or Maracyn2 are three choices.

Jay

gideon2086 · Mar 20, 2021

Jay Hemdal said:
Indeed, that seems to be a septicemia that yellow tangs are prone to. I've never been able to figure out if it just shows more clearly on yellow tangs, and other fish get this, but we just see it on them, or if yellow tangs are just prone to it.
Treatment is tough - best option seems to be a broad spectrum, gram negative antibiotic in a treatment tank. Furna-2, Neoplex, or Maracyn2 are three choices.

Jay

I suspect it was brought on by a recent heavy dose of NOPOX. I need to head out of town for the remainder of the week on Tuesday. From what I've read of the Furan instructions, this isn't enough time to do the water changes. Do you happen to have a recommendation?

Jay Hemdal · Mar 21, 2021

gideon2086 said:
I suspect it was brought on by a recent heavy dose of NOPOX. I need to head out of town for the remainder of the week on Tuesday. From what I've read of the Furan instructions, this isn't enough time to do the water changes. Do you happen to have a recommendation?

Neoplex ought to fit that schedule, and perhaps Maracyn 2 will alo. I guess Nopox could have fed bacteria that happened to be a species that can infect the fish's skin.

Jay

gideon2086 · Mar 21, 2021

Jay Hemdal said:
Neoplex ought to fit that schedule, and perhaps Maracyn 2 will alo. I guess Nopox could have fed bacteria that happened to be a species that can infect the fish's skin.

Jay

The directions for both state that daily dosing is needed. Have you utilized them differently?

Jay Hemdal · Mar 21, 2021

gideon2086 said:
The directions for both state that daily dosing is needed. Have you utilized them differently?

Oh, I thought you meant you have nobody to do water changes, not having somebody to dose the tank is an issue of course. I can't think of any "one and done" type treatments....

Jay

gideon2086 · Mar 21, 2021

Jay Hemdal said:
Oh, I thought you meant you have nobody to do water changes, not having somebody to dose the tank is an issue of course. I can't think of any "one and done" type treatments....

Jay

I suppose I can roll the dice and ask the wife to assist. Neither of these options appear to be coral/invert friendly though. I will have a heck of a time trying to get him out of the tank.

N.Sreefer · Mar 21, 2021

gideon2086 said:
I suppose I can roll the dice and ask the wife to assist. Neither of these options appear to be coral/invert friendly though. I will have a heck of a time trying to get him out of the tank.

You could use a channel on a doser to administer the meds and change the tubing after / run it a couple of days with rodi water after to rinse or just replace the one head on the doser. Probably better than trusting someone who doesn't know what to do and you could dose daily without being home once its calibrated.

gideon2086 · Mar 21, 2021

N.Sreefer said:
You could use a channel on a doser to administer the meds and change the tubing after / run it a couple of days with rodi water after to rinse or just replace the one head on the doser. Probably better than trusting someone who doesn't know what to do and you could dose daily without being home once its calibrated.

Good thinking, thank you