Angling Times (UK) MAKE MY GROUNDBAIT 2017-11-07 - Pour liquid additive into an empty bottle. Add river water. Add some hemp, pellets and boilies to the mix. Mould tangerine-sized balls to throw or catapult into the swim. Mix together a bag of Krill Active Mix and a bag of halibut powder. Pour the water and additive over your groundbait. Add the liquid from a tin of cooked hempseed.