What conditions would be most suitable for photosynthesizing green algae?

The best option for her is the presence of bright sunlight. If you constantly illuminate the container with water in which chlamydomonas live, on the one hand, after a while you can notice that there are clusters of these plants. The light-sensitive eye of the algae perceives light, and with the help of flagella, it moves towards a more illuminated place. This desire for light is called positive phototaxis. But chlamydomonas is able not only to feed on the products of photosynthesis, but also to absorb ready-made organic matter throughout the body surface.