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Message: <blockquote data-quote="sixty_reefer" data-source="post: 10355036" data-attributes="member: 111216">I am from a idea that Cyanobacteria and dinoflagellates need organic carbon to bloom, not absolutely sure yet although after nitrates or phosphates bottom out it seems that heterotrophic bacteria won’t be able to assimilate Carbon as there’s no phosphates or Nitrates. This will a low for carbon to become more available, other nutrients that will also be available will be organic nutrients as nitrogen and phosphorus that some of this evasive species could use as a source of energy in the absence of inorganic nutrient.Cyanobacteria and dinoflagellates are also observed in high nutrients conditions, most times observed during carbon dosing, the reason they may bloom in this condition may be also due the rapid decrease in inorganic nutrients that will allow carbon and organic nutrients to be more available momentarily, many will observe Cyanobacteria form in low nutrient conditions after dosing amino acids, this contains carbohydrates that could be a source of glucose, I’ve also seen them bloom after some die of in macro algaes that again will be a source of carbon. from my point of view they seem to bloom wend organic carbon and organic nutrients become more available in our systems.</blockquote>