For algae-eating cichlids from Lake Malawi and Lake Tanganyika  With 38% top quality, protein-rich Spirulina algae (S. platensis) + Plankton.  Studies in the lakes of the Great Rift Valley have shown that the algae-grazing cichlids eat diatom and blue-green algae (Cyanophyceen) and not green algae, as often presumed.  When grazing on algae, the fish consume 2-10% animal protein in the form of the micro organisms which live in the algae. The same balance is attained through the shrimp contained in the food."