It is Really Cold

January has started out really cold. This morning we woke up to only 17 degrees and as you might expect with these temperatures, some ice has formed on the pond. In the first picture is ice that formed at the bottom of the filter.
In the second picture is some of the ice that is surrounding the Styrofoam providing protection for the Goldfish from the various predators in the neighborhood. I haven't seen any of the predators in a while but I suspect they are still around.