[RC]   Gold fish and ice - Magnumsmom
 
As long as the tank does not freeze solid and as long as 
there is enough O2 exchange for the number of fish in 
your trough, the fish should live.  Use a heater with a 
cage on it to remind them to stay away from the element.
A fish frozen in a block of ice is a dead fish.
A long time ago someone here on Ridecamp recommended 
digging out under your stock tank and filling the space 
with rocks (and air) and that will help keep your tank 
from freezing.  Good idea.  Difficult to do if you live 
on sold rock.
I don't know about feeding stock tank fish, but if you
feed them, you will want to stop feeding them when the  temperature of the water reaches 50F.  A bit of sand or
muck in the bottom of the tank will give them a place to
hide all winter.  They slow down with the temp drops.
Of course if you have a fish stomping beast like Maryben
then they don't stand a chance...  might serve her right
though for buying expensive Koi.  Rule of thumb: the more 
you pay for the fish the faster it dies...
;-) - Kathy Myers
in Santa Fe, NM
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