Let me give a little more background about my pond. I'm wondering if the threads about super cooling during the winter months might fit here or at least be a clue to the fish inactivety mystery. The average depth of my pond is 3.5'!! I do have 2 holes that are 5' and 6'deep. These "holes" are approximately 25% of the total surface area of the pond. I have used a windmill areator since the pond was constructed. During the entire winter there is an area of approximately 20 square feet that is devoid of ice. (NW wind in Minnesota never stops blowing during the winter). I do have an underwater camera that my kids and I use during the ice fishing season. We have monitored fish in both holes though out the early winter and then they seem to disappear. Anybody have any ideas? A side note about the fish growth. I have been monitoring my fish growth both by trapping and fishing. The growth of all species seems to be good but could my fish be stressed into not eating during the winter months?
