De capsulated baby brine shrimp (Artemia nauplii) identical to freshly hatched 100% Brine Shrimp, Ideal for delicate fish, fish fry, and invertebrates. Stays buoyant for longer feeding time. Ocean Nutrition Instant Baby Brine Shrimp is a convenient alternative to cumbersome and time consuming brine shrimp hatching systems. For freshwater and marine fish.