I like the Mason plastic coated tip up line 30# test, it won't soak up water or freeze to the ice at all and is very easy to handle, doesn't kink or tangle when a fish pulls all your line out. I have some of my tip ups with over 10 year old line on and its still good. Just tie a swivel to it and use a leader of your length and choice. I use 8 lb flouro carbon for walleye and a steel leader for northern pike.