1) Alga 1) Blue-green algae variety 2) Dietary supplement 
[dietary supplement] Spirulina is a cyanobacterium that can be consumed by humans and other animals; there are two species, Arthrospira platensis and Arthrospira maxima. Arthrospira is cultivated worldwide; used as a dietary supplement as well as a whole food; and is also available in tablet, flake and powder form. It is also used as a feed...
A type of Blue-green Algae often fed to both saltwater and freshwater fish. Contains pigments that enhance blues and greens in fish.