I wouldn't worry about feeding CC pellets over the winter. Most likely, the CC will not reproduce in your pond, which is probably a good thing in my opinion. You will need to restock as necessary to maintain their numbers. Be very aware of possible water quality issues due to crowded fish and supplemental feeding, and depending upon the number of fish present, you may need to aerate during the winter also to keep some of the pond open, or remove a portion of the snow cover to allow light penetration.
