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Five separate jars of: Spirulina, Cladophora, Derbesia, Callithamnion, Ectocarpus.
This item contains sufficient material for a class of 30 students.
To simplify ordering we provide our protozoan and algae cultures, and some of our invertebrate cultures in one size only. To be sure you order enough material for your class, please use these guidelines: For up to 30 students - order 1 set of cultures; for 31-60 students, order 2 sets of cultures; for 61- 90 students, order 3 sets of cultures, etc.