I tried to ascertain where Monster lived, but was unable to do so. Where Jarred (Mediahound) lives, it is not too important. Where I live, a half whisky barrel would freeze solid, at some time, during the winter. Koi and Goldfish (both are carp) are, basically, cold water fish, and they can live under ice in a pond, but they cannot survive if the container freezes solid, to the bottom. In south Florida, the problem might be that the water gets too warm. Cold water fish, like trout, carp, etc., have a higher oxygen requirement than tropical fish, and warm water cannot hold as much dissolved oxygen, as cold water.

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John