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Closterium sp. A green alga that has elongated, single-celled desmid. Each green algae culture contains enough material for a class of 30 students. This culture requires a high light level of 200 to 400 foot-candles of fluorescent light 18 to 24" from the culture. Optimal medium: Alga-Gro® Freshwater (item #153752). Optimum growth temperature: 22° C.
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