> The golden I have kept came from
> Florida and most fish I have bought home from there lived but didn't like
> temps as low as 60. H. formosa stops breeding at that temp.
Bob, I've noticed that my H. formosa seem to waste away in temps in the 40's.
I barely have enough to maintain a population and YOY & males are usually
hardest hit. For that reason, I maintain some in a tank with temps in the 60's
along with some in a tank in the 50's [in a window shelf]. I have an
unusually high percentage of males this winter and I think it's directly related to
keeping them in warmer waters.
As for the golden topminnows, I have some in a tub that remains pretty much
in the 40's and then some more that I have in a tank that's in the 60's. They
are mostly YOY about 1" - 1 1/2" long and I'm experimenting to see if I can
overwinter them in the colder water. I've tried keeping some in an outdoor tank
with stock tank heater in it, but without success. The water temps have
gotten down into the 30's in the tank, even with the heater, hence the move to an
indoor tub that will remain in the 40's for much of the winter.
Bruce
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