Yellow Tang Lymph?

CoralsAddiction · Jan 21, 2023

My YT has had white spots for a few weeks. Not ich and not velvet. The spots used to come and go but lately have been on the tang longer. The tang has been a little more stressed and intimidated by…wait for it…a leopard wrasse. It’s the only other fish in the tank that constantly eats Nori sheets with the yellow tang. She’s also bossy.

Jay Hemdal · Jan 21, 2023

That’s not a typical location for Lymphocystis, but not impossible. However, Lymphocystis doesn’t show up in long term captives and this one looks like you’ve had it for awhile?

Are there spots on both sides of the fish?

The tang looks a bit thin, how long have you had it? Is it getting enough meaty foods in addition to the nori?

Jay

vetteguy53081 · Jan 21, 2023

I'll let Jay work with you n this as I tend to stay out when there is good help. I chimed in because this fish is indeed thin. One thing that contributes to disease prevention is Good water quality and diet. Id dont recommend cheap test kits and diets with fats and aminos are a must for tangs/surgeons.
I always recommend but not limited to:
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

Ive had these yellows 5+ years and this is typical body contour when fed properly:

CoralsAddiction · Jan 21, 2023

Jay Hemdal said:
That’s not a typical location for Lymphocystis, but not impossible. However, Lymphocystis doesn’t show up in long term captives and this one looks like you’ve had it for awhile?

Are there spots on both sides of the fish?

The tang looks a bit thin, how long have you had it? Is it getting enough meaty foods in addition to the nori?

Jay

Spots on both sides and I’ve had it since last June. Not other fishes have the spots. It was QT’d with copper power and Prazi. When the spots appeared a month ago or so and the tang started to get thin I ran prazi in DT for 3 days after many of my fishes started to show signs of stress and discomfort. I stopped Prazi in DT after 3 days.

Jay Hemdal · Jan 22, 2023

CoralsAddiction said:
Spots on both sides and I’ve had it since last June. Not other fishes have the spots. It was QT’d with copper power and Prazi. When the spots appeared a month ago or so and the tang started to get thin I ran prazi in DT for 3 days after many of my fishes started to show signs of stress and discomfort. I stopped Prazi in DT after 3 days.

What meaty foods are you feeding it? Isa it fed to satiation multiple times a day? I'm trying to figure out if the thinness is lack of calories or some internal issue.

Leopard wrasse have pretty gnarly teeth, if it is striking the tang, that could cause this.
There is also an internal fungal infection, Ichthyophonus hoferi that can cause white pustules like this, but there is no treatment.

I'm also curious about the prazi treatment - if you dosed correctly, there should not have been a reaction 3 days later. Did you use praziquantel powder or Prazipro? Prazipro can cause issues at 2 or 3 days out because the solvent used grows bacteria that in turn uses up dissolved oxygen - you always want to have additional aeration with prazipro.

Jay

CoralsAddiction · Jan 22, 2023

Jay Hemdal said:
What meaty foods are you feeding it? Isa it fed to satiation multiple times a day? I'm trying to figure out if the thinness is lack of calories or some internal issue.

Leopard wrasse have pretty gnarly teeth, if it is striking the tang, that could cause this.
There is also an internal fungal infection, Ichthyophonus hoferi that can cause white pustules like this, but there is no treatment.

I'm also curious about the prazi treatment - if you dosed correctly, there should not have been a reaction 3 days later. Did you use praziquantel powder or Prazipro? Prazipro can cause issues at 2 or 3 days out because the solvent used grows bacteria that in turn uses up dissolved oxygen - you always want to have additional aeration with prazipro.

Jay

I have an auto feeder that dispenses pellets twice a day. Plus one cube of mysis or brine shrimp daily. Nori 2-3 times a week.
Prazipro is what I used.
thanks

CoralsAddiction · Jan 22, 2023

I can easily catch the tang and QT it. It’s trained to eat out of a trap.

vetteguy53081 · Jan 22, 2023

CoralsAddiction said:
I have an auto feeder that dispenses pellets twice a day. Plus one cube of mysis or brine shrimp daily. Nori 2-3 times a week.
Prazipro is what I used.
thanks

Good water quality and diet is a must and defense for both lympho and HLLE in tangs. Some foods you want to feed listed as what you are feeding is very inadequate and lack the needed fats and aminos for these fish are:

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

CoralsAddiction · Jan 22, 2023

vetteguy53081 said:
Good water quality and diet is a must and defense for both lympho and HLLE in tangs. Some foods you want to feed listed as what you are feeding is very inadequate and lack the needed fats and aminos for these fish are:

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

Have you noticed any excessive nutrient levels when feeding TDO? I had used that product a lot when I was breeding my clowns, both for broodstock and their offsprings back in 2017-2018. Algae was up through the roof when I fed it, as were phosphate and nitrate levels

vetteguy53081 · Jan 22, 2023

CoralsAddiction said:
Have you noticed any excessive nutrient levels when feeding TDO? I had used that product a lot when I was breeding my clowns, both for broodstock and their offsprings back in 2017-2018. Algae was up through the roof when I fed it, as were phosphate and nitrate levels

Yes and I feed it sparingly. In my AFS, i mix it with formula2 and Prime reef flakes, ocean nutrition formula 1 and 2 pellets. Also reef roids and similar will elevate phosphate

CoralsAddiction · Jan 22, 2023

And this is not a diet related issue because I bought a juvi blue tang and a juvi C. Argi angel. Both doubled in size in the last 7 months. I bought them and the yellow tang at the same time.