👉 Actinophaenia is a type of algae that primarily inhabit freshwater lakes, rivers, and streams. It is characterized by its thin, white cell walls and specialized structures called cell walls called phylloids. These cells contain numerous vacuoles, which are small, fluid-filled spaces filled with water and dissolved substances. Actinophaenia is often used in research as a model organism for studying algal metabolism and growth under different environmental conditions.