Iodine (I) - used by corals for synthesizing pigments which allow them to adapt to variable lighting conditions and protect the fragile coral tissues from UV radiation. Intensifies dark blue and purple colouration. 10 ml of the product increases the iodine level by 0.1 mg/l (ppm) in 100 litres (27 US gal) of water.
Recommended level: 0.055 - 0.07 mg/l (ppm). Recommended dosage: 1 ml/100 l (27 US gal) of water daily