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[APD] RE: Why algae does not grow

TB: "The issue is one of inducement. Chemicals signal new growth, these might be variations in CO2 for BBA, NH4 for green water and staghorn and maybe other species, build up of organic matter and high light, low PO4 etc."

Does this imply some sort of 'receptor' mechanism on the surface of the algae spores? If so, couldn't you science-types put them under the microscope and see them? And if so, couldn't you know exactly what is the trigger?


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