Molydbenum
PJS Molybdenum Element Pack
5.00
Molydbenum
UPDATED: July 17, 2026
Molybdenum (Mo) atomic number 42, PJS considers it to be a Minor element as it plays a crucial role in the biological and metabolic process in corals and is used by all reef organisms and is below 1ppm in seawater. In the industry it is considered a trace element, we need to fix that. Molybdenum belongs in the transition metal group and is naturally found in seawater. In reef aquariums, maintaining proper molybdenum levels is important for color, vitality and healthy coral growth, and supplementation will be necessary, especially in heavily stocked tanks.
Molydbenum Key Roles
Biological / Metabolism:
Molybdenum is essential for the enzymes involved in nitrogen metabolism, which allows for protein synthesis in corals and other marine life.
Molybdenum is used by all levels of organisms in the entire ecosystem.
Enhanced Coral Coloration:
Molybdenum directly effects the diverse coloration and intensity of corals.
Aids in UV protection for corals and zooxanthellae.
Protection Against Parasites:
Molybdenum helps create a healthy ecosystem, helping to protect from parasites.
ALWAYS test molybdenum levels in your reef aquarium before supplementing to determine if dosing is needed to avoid overdosing.
Start slowly by beginning with a low, gradual dose over days avoiding any sudden shifts in water chemistry and monitor the effects.
Avoid overdosing, as it can lead to imbalances and become toxic to corals and other invertebrates in your tank. Molybdenum is essential for metabolic process, helps to burn nitrogen and phosphorus. Foods and other additives and salts may have it in them from processing. Molybdenum must be dosed if dosing copper. It alters the toxicity of copper to invertebrates Dosing molybdenum, more is not the answer, time is the answer Molybdenum deficiency will lead to reduced growth and color in corals. Overdosing will result in all types of algae blooms, and how. Hair, Cyano, Slime.