What are cyanobacteria? Cyanobacteria, a.k.a. blue-green algae, are a group of microorganisms that are ubiquitous. They are photosynthetic, similar to plants, and occupy a wide range of habitats both on land and in water. There are many types of cyanobacteria, some occurring as single cells and others forming filaments and colonies. Cyanobacteria are found in … Continue reading Cyanobacteria Resource