i have a red tail catfish and was wondering what i could do for him during a south carolina winter. he is going to be in a 2000 gallon outdoor pond and it gets down to the 30s for a month or 2 so its pretty cool but the water should change that dramastically because bodies of water in sc never freeze at all. i was just wondering if there was a way i could keep him warm in the pond and what was his losted tolerated temerature. i was thing about sinking 2 or 3 deicers at the bottom so that he could sit down there with there warmth . im new here so all responses wuld be awsum