I don't know man, I like to catch fish, but I don't think I'd stick hooks through a mammal in order to catch one. I know they're already dead, but I think you'd honestly have better luck with a live minnow. Just use the Pike or Jumbo ones. A dead mouse is just gonna sink and lay motionless on your hook. No action to get the fish excited. Maybe dead mice would work better for say catfishing.