GarlicGuard, 2 L / 67.6 fl. oz. Garlic Additive And Flavor Enhancer For Freshwater And Saltwater: Reef And Plant Safe All Natural Garlic Scented Odor And Flavor Enhancer For Freshwater And Saltwater Fish Our research has shown many fish are attracted to natural odors such as garlic Simply Mix Garlicguard With Any Food Item To Attract The Interest Of Finicky Eaters Soak Food In Garlicguard Before Feeding; Safe For Use With Medicated Food (To Attract Finicky Eaters To Medicated Food)