Hikari Bio-Pure Frozen UVX Brine Shrimp are the perfect treat for most freshwater and marine fish. Brine shrimp are naturally high in the fatty acids and lipids that fish crave, and are a great source of natural algae. Bio-encapsulated with multi-vitamins, Frozen UVX Brine Shrimp provide maximum nutrition for your fish. In addition, they are sterilized in three steps, ensuring they are free of harmful bacteria, parasites, and foul odors. As an added bonus, this maximum nutrition minimum mess product is low in salt, which helps marine fish complete the osmotic process using less energy.