Fluorocarbon leader is not only good for pike, but for many other freshwater and saltwater fish as well. fluorocarbon has many benefits over other types of fishing line. For one, it is nearly invisible in water, making it ideal for spooky fish that are easily spooked by visible lines. Fluorocarbon also sinks, which can be an advantage when targeting fish that are holding close to the bottom or in deep water column. Additionally, fluorocarbon is more abrasion resistant than other lines, meaning it will hold up better to teeth and debris in the water. It also has a higher knot strength than other lines, meaning your knots are less likely to come undone mid-fight.