Gabrovic Larval Shrimp Flake, Black is specially formulated to enhance your existing feeding protocol while effectively pigmenting the larvae to support management needs. Zeigler Larval Shrimp Flake, Black is made from the best-quality natural ingredients, including a high level of marine animal protein. Hatchery flakes are fortified with complete vitamin and mineral packets and the amino acids required by shrimp larvae to achieve high survival and fast growth.