The 500ml bottle of Swim Stim F1 Sweet Pellet Soak is a versatile and essential product, incorporating Koi technology to enhance the attractant power of your feed pellets. Developed as part of a range of four unique pellet soaks, these products are designed to provide both color and flavor to your pellets, drawing in fish to your swim. Make the most out of your Pro-Expanders or add a boost of Swim Stim attraction to fishery own pellets by using the available options including Betaine Green, Amino Natural, Red Krill, and F1, all available in convenient 500ml bottles.