I’ve got fly fishing line on mine, everybody that sees it & uses it is jealous. You need a mono leader. Very expensive in stores but reasonable on Ebay if you can wait for it to come from China. Comes in orange, blue, yellow, green, etc, different colored lines make it easier to untangle lines. 100 foot spools are plenty for where I fish. Don’t get too hung up on size, weight, and floating line vs non floating. I’ve got some of each and don’t notice a difference.