The ground Hemp produces a very light oil which is released immediately, even in cold temperatures giving instant attraction and the heavier fish oils in Halibut pellets are released at a slower rate and keeps pumping out of the pellets as the water flows over them so drawing fish to the feeder for a prolonged period of time and the extra strong garlic powder is washed through the swim drawing in fish to the bait. The variation in size of particle means that fish pick up the trail as the smaller bits get moved downstream creating a trail to the bigger bits which stay round the feeder.