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Spirulina major. A marine cyanobacteria (blue-green algae) culture that contains spiraled trichomes. Each cyanobacteria culture contains enough material for a class of 30 students. This culture requires a low light level (50 to 100 foot-candles of fluorescent light or fluorescent light from the ceiling). Optimal medium: Alga-Gro® Seawater (item #153754). Optimum growth temperature: 22° C.
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