..... the mortality rate increased, and it became
clear that they were carrying an infectious agent which would spread to
domestic produced guppies with lethal consequences. Exposure of healthy
domestic produced guppies to Singapore fancy guppies resulted in near
total mortality within a few days. No treatments seemed to be
effective, and the problem continued to get worse with the imported
guppies. It became impossible for a wholesaler or retailer to carry
Asian guppies in the same system with domestic produced guppies without
the domestic guppies becoming infected and experiencing almost total
mortality (the Asian guppies had high but not total mortality and
appeared to have some resistance to the unknown agent).....
ima tu nesto,...
Moguce da je i nekakav virus, jer ocito antibiotici nedjeluju,...
/edit: evo surfajuci naletio sam na ovu stranicu na kojoj postoje isti simptomi koje ste spominjali:
http://ifga.org/articles/disease2.htmRiješenje je Formalite II +(?) the Super Velvet Plus
link..
Formalite II je miks Formaldehida, Bakra and Nikl Sulfata,... malo jaca kemija

Također autor navodi da je bolest izuzetno zarazna,
"Once when the disease was in full bloom, I took one drop of water from a
diseased tank and put it in a healthy 5 gallon tank of fish. Within 24 hours
fish in this tank were dying; strong stuff"
Edited by: Toce