As long as this algae is controlled, brown slime is an important algae especially for reef set-ups. It’s a symbiotic algae, which provides nutrients for invertebrates. Corals, clams, anemones and sponges harbor this algae for the same purpose - exchange of nutrients - while the brown slime algae enjoys protection from predators.
Dinoflagellates has two flagella with which it can propel through the water. If uncontrolled, dinoflagellates build a brown slimy film covering most of the surface, in both salt and freshwater. Controlling nutrients can effectively prevent this algae type from blooming.
