AquaForest Component C is designed for supplementing iodine and fluorine in marine aquariums.
It should be applied at least once a week in a dosage of 10 drops for 10l of aquarium water or 10ml (one top) for 200l (54 US gal.) of water ï¿½ with average coral planting.
US: 19 drops for 5 US gal. of aquarium water or 10ml (one cap) for 54 US gal. of water.
Aquaforest Product Guide