12-17-2005, 04:56 AM
Join Date: May 2006
Location: Melbourne, Victoria, Australia
It doesn't get cold enough where I live for my ponds to freeze, but from reading English pond books and surfing the net, I gather that most pond fish can survive under ice as long as there is a layer of air between the water surface and the ice. Most pond books advise removing as much decaying organic matter form the pond as possible before winter arrives, lowering the water level once the pond has frozen over and making a hole in the ice to allow the air to circulate.