Fauna Marin Elementals Trace Molybdenum is a highly concentrated solution designed to address molybdenum deficiencies in reef aquariums. This high-purity formulation helps maintain the delicate balance required for vibrant and healthy coral growth by providing essential trace elements that can be lacking in seawater or aquaria due to water changes with pure salt mixes. Each dose of 1ml per 100 liters (26 US gallons) adds 6 micrograms of molybdenum per liter, carefully balanced to avoid over-dosing which could harm corals and other reef inhabitants.