Flying Fish Express - MacroAlgae Macroalgae are found in many shapes and colors, including green, red, brown and blue. They are photosynthetic, using chlorophyll to synthesize their food. Moderate to strong light is recommended. Caulerpa is a very popular family of marine algae. There are several types ranging in color from bright lime-green to bluish brown.
Some types grow tall and some grow as mats.
Growth of all Caulerpas develops along a main runner from which leaves grow along its top and roots along its bottom. Caulerpa roots are used solely to anchor the plant in postion. Caulerpa fronds are filled with fluid and are very thin-walled. It is important to acclimate them slowly to a new environment, especially relative to the salinity of your water. Rapid changes can rupture the cell walls and cause the plant to die.