Westin Artificial bait Fidusen (Black/Yellow, 2.8 g) Fidusen is an extremely effective lure that trout cannot resist! The small lure of only 2.8 g must be fished ultra-slow on a thin braided line. To cast it further, you can also mount it very well behind a sbirolino. The shape and movement of the fidusen make it a “sure thing” when trout fishing. Fidusen can be used all year round and is by far the most popular microbait among top Danish anglers. The perfect microbait for all conditions!