Scientific name: Menidia menidia For All Fresh & Saltwater Carnivores Silversides ( Menidia menidia ) are loaded with HUFA's (highly unsaturated fatty acids) and are a premium choice for extending the longevity of your fish. Prize freshwater and marine puffers, groupers, eels and lion fish will take great delight in tackling these whole saltwater fish. Silversides provide essential nutrients that help maintain high energy levels and vigor in your fish. Product Features All natural Frozen fresh Highly nutritious Excellent for large carnivores Great for fresh and saltwater fish Promotes proper growth and supports color Recommended For Freshwater: Cichlids, Catfish and others. Saltwater: Triggers, Puffers, Groupers, Eels, Lion Fish and others.