The feather duster. It’s a spectacular sight to see in real life. The long tube, the soft and wavy “feathers” moving in the current. It’s always cool to watch as it sucks into the tube when a fish gets too close. It is almost as if it senses you nearby or could actually see! There are several different types that include the Coco worm as well which is a hard-tubed worm with brightly colored “feathers”