Or bring the affected fish inside, along with some of their water to
minimize shock - let them reach room temp naturally, and *then* treat. Fish
with fungus (of any type) need help ASAP if they're to have any chance of
survival.

Lee

"Heather" wrote in message
.. .
What is the recommended treatment for the following:

Fish - Goldfish
Symptoms - Grey/black fuzz on skin; fish lethargic
Water temp - 45 F

Out of 25 fish about 5 seem to have some degree of this fungus stuff.

Thanks so much for your help,

--
Heather
SW Ontario (Zone 5)