Hole In The Head

[tanzen]

I do believe one of my angelfish has hole in the head. She has popeye and white pimple-like dots scattered in between and around her eyes. On her side she has a red sore. I recently had a swordtail die of dropsy, so i'm thinking this may be related.
So, my question is, since hole in the head is caused by a parasite, Spironucleus vortens so i read, would it be wise to go ahead and treat the whole tank or should i just quarantine the one angel?

Thanks

water parameters:
ammonia:0
nitrite:0
nitrate:5
ph:7.4

 

[WILDER]

Treat the whole tank.
Also pimples can be bacterial as well as hole in the head.
Just make sure you are convinced it is hole in the head.

A link for you.

http/www.fishyfarmacy.com/articles/hexamita.html

Hexamita (a.k.a. Hole-In-The-Head)

Symptoms:

Indications for this disease are small holes in the body, particularly the head. These develop into tubular eruptions. Other symptoms may include yellow strings of mucous, which may trail from the lesions around the head. Sick fish may lose their appetite and become emaciated (sunken belly region). Their colors may fade and pale, stringy feces may also be observed.


Cause:

The flagellate Hexamita. This parasite infects the gallbladder, intestines and blood stream. Fibrosis of the gallbladder may occur as a result of infection. Low-level infestations may exist for quite some time unnoticed. Cichlids and Gourami are the species most commonly afflicted with this disease.


Treatment:

The medication Metronidazole (Flagyl). This infestation is contagious, therefore, all fish in the tank should be treated.