Help needed on Blue Tang with black (parasitic?) issue.

[Mr. Seahorse]

Hi,
I am posting this on behalf of another person. They have had this blue tang for 2 years. For the past few months it has developed these black marks on the blue sections.
What is it? Any help would be appreciated

Thanks

 

[Coral reefer]

Sure seems like some HLLE. Not sure if there’s more going on or it’s the worst case I’ve seen.
Head and lateral line erosion

 

[PjFish]

Those Vermetidae Snails in the tank can cause lacerations that look similar if the fish is rubbing on them.. Have him crank the white lights up and take better zoomed in pics..Hope it's not HLLE.. Are those scars from healed wounds or current open wounds?

 

[Mr. Seahorse]

How could I treat HLLE? The flame angel in the same tank seems to have it too just not as much. It has increased over time.

 

[Darkxerox]

What sort of diet is it on and how big is the tank?

 

[Mr. Seahorse]

90 gallon tank, only emerald entree frozen food

 

[Kensington Reefer]

So sad for this fish...

 

[PjFish]

90 gallon tank, only emerald entree frozen food

Emerald is fairly low in fats plus mostly land based veggies.. Not good as a sole food only need to mix it up otherwise will have issues down the road.. Their are several types of HLLE so hard to get a conclusion on that one pic..The tail is pretty messed up? Any new aggressive fish added recently?

 

[PjFish]

Post a pic of the whole tank

 

[Mr. Seahorse]

I will try to get a picture of the whole tank from that person. In the tank there is a flame angel (has same issue with HLLE) and a diamond watchman goby. They have all been in there for 6 months+

 

[Mr. Seahorse]

Should he add PraziPro to to that parasites, etc?

 

[Coral reefer]

I would assume poor water conditions and diet
Without a lot of details I’ve got no real advice besides several large water changes and improved diet.
I like algae based pellets in an autofeeder and frozen mysis as a foundation of a decent diet

 

[Kensington Reefer]

At the minimum...