This article is from the Aquaria: Disease, Algae and Snails FAQ, by Elaine Thompson, Thomas Sasala and George Booth
Disease Name
Treatment
1(4) Black Ich
Freshwater dip coupled with formalin bath
2(4) Brookynella*
Copper coupled with formalin bath
3 Fin Rot
Erythromycin, Neomycin
4 Fish Lice
Freshwater dip or Formalin bath
4 Flukes
Freshwater dip or Formalin bath
5 HLLE
? - Better environment
6 Intern. Parasites
Medicated Food
7 Cryptocaryon*
Formalin bath (1/2 -1 hour) once every other day for a week.
8 Ichthyosporidium
None - better environment
9 Lymphocystis
(None - it should go away)
10 Amyloodinium*
Freshwater dip coupled with copper
11 Microsporidian
None - euthanasia
12 Poisoning
Massive water changes/move to an untainted environment
13 Poor Diet
Vary Diet; meet the requirements of the animal
14 TB
Kanamycin, Isoniazid
15 Vibrio
Erythromycin, Neomycin
* Both tank and fish must be treated to erradicate the pest.
 
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