Corey,
I can't imagine that the coppernose would'nt work up North. Bream typically will feed down to about 40 degrees F I have been told. Our water never gets that cold. There are people in Ark. that sell coppernose. They could tell you. On second thought since they are trying to sell fish so contact a university. Our current water temp close to the surface is 52 degrees F. We have had a cold winter. When I tossed out some feed the other day the coppernose fed pretty well.
