Why include macro algae in the aquarium?
Most importantly they offer a beautiful contrast and diversity to reef aquariums, refugiums and planted tanks. They can provide a great food source for tangs, angels and other picky eaters. Macro algae naturally filter aquarium water by reducing the available levels of phosphate, nitrogen and other waste. Overall they can enhance any marine system by providing decoration as well as shelter for many fish and invertebrates. Natural filtration methods have increased in popularity among marine aquarists with the addition of the refugium, which provides a separate habitat for displaying and growing algae, while connected to a main display tank. A fairly new trend in the hobby has been the increased interest in creating themed ecosystems, supporting marine plant and macro algae dominated aquariums. These systems are quickly gaining popularity as a change from the normal “reef” setup.
