New life spectrum hex shield is a life-saving medicated fish food that works from the inside out to battle Hexamita and Spironucleus, as well as other wasting diseases caused by intestinal parasites. These 1 mm sinking pellets also feature a highly concentrated nutrition profile to support the health and well-being of your fish. To entice ailing fish that are less inclined to accept food, hex shield pellets offer an exceptionally palatable taste. They contain all-natural ingredients to mask the infused medication and will not induce stress or suppress appetites when used as directed. New life spectrum hex shield pellets are equally effective in treating freshwater and marine fish and not impact the health or efficiency of your aquarium’s biological filter. Made in the USA.