👉 Fillock is a type of fish. It is also known as the brown trout, which is native to North America. Fillocks are typically smaller than other trout species, and they are known for their strong swimming abilities and excellent fishing skills. They have a unique appearance with black scales and white spots on their body. Fillock are often kept in captivity as pets or as part of baiting systems, where they can be used to catch fish using artificial lures or live bait.