Uzytkownik "Elaine T" napisal w wiadomosci
...
Lior T wrote:
Hi,

One of my old Tettra's developped a large black swelling in its nose.
only one has it, but I'm pretty sure its from the last few days
although I cant be 100% sure...

i've tried photographing it but its about hard without adequete
lighting... here's the link if you can make anything out of it :
http://www.liort.com/temp/fish_nose.jpg

would appreciate any help.
LT

Looks like a lymphocystis viral growth, an injury, or the start of a
Columnaris infection. Both of those often start at the mouth. I think
it looks more like lymphocystis. Lymphocystis is a viral disease that
can cause tumor-like growths on fish. There is no cure, but the virus
and associated tumor often goes away on its own. It can take a month or
more for lymphocystis to clear.

If you have a quarantine tank, move the fish there because it will be
shedding virii. Supposedly 3 hour acriflavine baths every few days will
help clear lymphocystis and will certainly help with Columnaris or
secondeary infections. Treat in a separate container - a clean bowl or
dish with an airstone is fine for 3 hours. Acriflavin stains so don't
use your favorite Ttpperware. Watch for signs of Columnaris in case I'm
wrong. Those are white, fluffy finrot, white patches on the body, and
reddened fin bases. If that happens, feed antibiotic food and put
kanamycin in the water immediately. If the fish refuses food, add
furanace to the water as well IF the fish is in quarantine. Furanace is
bad for biological filters.

If you don't have a hospital, do not allow the fish to die in your
display tank. You must euthanize a lymphocystis-infected fish if it
looks close to death to keep the disease from spreading.

Sheesh...yet another way long post. I gotta work on that old disease
FAQ some more. ;-)

--
Elaine T __
http://eethomp.com/fish.html '__
rec.aquaria.* FAQ http://faq.thekrib.com

You must be able to cut and paste a lot of your excellent work in these ad
hoc disease articles into your FAQ.

Uncle Davey