1, green algae is not a red tide organism. Red tide is an ecological abnormal phenomenon that some microalgae, protozoa or bacteria in the ocean proliferate or explosively gather to a certain extent under certain environmental conditions, causing water discoloration or endangering other organisms in the ocean.
2. Green algae is a unicellular plant, which lives in fresh water and contains a lot of chlorophyll. It can produce a lot of oxygen and nutrients through photosynthesis, and its diameter is only a few microns. So green algae is not a red tide organism.