BZ, This is my first time posting here on pond boss. I have to be honest, I have been "lurking" now for about a year. I have learned so much from all of you guys both southern and northern and haven't felt like I could contribute much. I too am in the frozen tundra of Minnesota with a 4 year, 1 acre pond. It seems like every spring is worse than the last as I have so much more to lose. I had one dead LMB and 2 BG. Every winter the fish seam to bite pretty good until mid January and then completely shut off by Febuary. Have you ever experienced this in your pond? Does anybody have any reasons for this happening? I have BG,LMB,YP and CC. Thanks to all for the information and I hope I can add something to this already great forum.