Hi all!

My problem is that a mouse drank water from my main tank infecting it with who knows how many bacterias. The outcome: fish with fin rot, columnaris, and who knows. They are dropping like flies.

I did not have any of these problems until then. It has been three weeks of desperation trying to find solutions to treat these diseases.

I set up two hospital tanks and either way the fish die. In fact, they die faster in the hosp. tank than in the main tank.

How can I kill the bacterias swimming in the water w/o killing the bio filter and the fish in the process? I already have a cheap uv system and does nothing.

Any advice, suggestion, comment or experience will be appreciated!

Thanks!

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GUPPY STRAINS I'M BREEDING:

Blue Grass
Blue Grass Swallow
Metal Blue Grass Swallow
Red Grass
Red Grass Swallow
Neon Blue Giessen/Ribbon
Japan Blue Blue Grass
Japan Blue Wild
Neon Blue

Strains I developed in my fish room:

HB Yellow (own line)
Platinum Pink Blue
HB Blue Leopard
HB Leopard Multi
HB Red Crowntail