- Size: 1 oz sample
- Spirulina is a blue-green algae that commonly grows in freshwater lakes and ponds. It's considered a complete protein, containing an ideal balance of all 9 essential amino acids, essential vitamins, phytonutrients, beta-carotene, and chlorophyll. It is 60 percent vegetable protein and is more digestible than other rich protein sources. Additionally, it is naturally loaded with vitamins A through E, iron, potassium, calcium, and antioxidants. This human grade spirulina does not foul the water easily, and a little goes a long way. This 1 oz portion will last the average hobbyist well over a year. Extra spirulina can be stored in the freezer for up to two years.