Spirulina Cultivation

A tip from a reader led the magazine to make this inquiry into spirulina cultivation.

068 spirulina cultivation - growing tank
The extreme alkalinity of the water used in spirulina cultivation caused the paint to peel away from the sides of this tank.
068 spirulina cultivation - outdoor trough
Early experiments in spirulina cultivation employed outdoor tanks and a swimming pool pump to aerate the water. The pump tended to chew up the plants.
068 spirulina cultivation - small pile
After harvesting and drying, spirulina is ready for consumption in this dark, granular form.
068 spirulina cultivation - lab aquarium
Texas researchers first grew spirulina in closed laboratory aquariums under artificial lights. 

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