Mycosidol® For a clean marine aquarium. Mycosidol Bio Cure contains natural ingredients and bacteria to purify the water and decompose organic waste, the so called Detrtitus. Red algae, also known as Cyano bacteria, will develop mainly in aquariums with a lot of detritus. When Mycosidol is applied as a cure the development of Cyano’s can be brought to a hold. Mycosidol can also be used as a periodic treatment to prevent the accumulation of organic waste.