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FROZEN POND

Subject: FROZEN POND
by grampyal on 12/12/2010 17:28:54

Hi, New here so having bit of difficulty finding way around.
My problem is that like many others my pond is frozen. In previous years this has not caused any difficulties and the fish have been OK. This year there is about 60mm of ice on pond and under it are several fish that appear dead (on sides) and others are moving but near the surface. Advice seems to be that fish will go down to deeper water when pond is frozen. Any ideas as to why my fish are not going down, the pond is about 900mm at deepest. Probably overstocked as the fish are breeding and over the years their numbers have gone up and up. We have oxygenating plants but no filter or oxygenating devices.
Any advice would be a great help.
Al.