On Mon, 27 Jan 2003 20:49:21 GMT, Bill Marcy
wrote:

You do not want to keep a hole open using a bubbler, that will cause
the temperature of the water to plummet, much below freezing. Your
fish are ok during the winter, they can handle water that is 32
degrees, but not water that drops belore 10 degrees.

Welcome aboard Bill, I'm so glad you cleared that up!