mikebee - Lee provides valuable advice, reread it and heed it. He speaks from practical experience. The fish behavior you describe is consistant with my observations of fish in and out of the aquarium.
Your fish tank is overcrowded. Unless I miss my guess your fish will begin to show signs of stress and disease problems. Cut back on the amount of feeding and monitor water quality closely. Do not forget to do regular water changes. Keep us advised as to how the fish are doing as winter progresses. Good luck.
