Aquaforest Manganum Lab 200ml a natural compound of seawater Supplement contains concentrated manganese. It’s a natural compound of seawater. It takes part in many metabolic changes and processes. Manganese compounds are used during photosynthesis, making it crucial element for proper coral nutrition. Dosage: 1 ml of the product increases the manganese level by 0.001 mg/l (ppm) in 100 litres
