A method of ecological restoration of water bodies containing excess nutrient includes steps of: (a) taming a kind of plankton to be able to eat blue algae as an algae eating plankton, so as to digest blue algae in the water bodies, and (b) putting the algae eating plankton in the water body polluted by the blue algae, wherein the algae eating plankton eats the blue algae, so that an eco-system of the water body containing excess nutrient can be restored.
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