Jod 24, 50 mlSize: 50 ml Essential trace element iodine for daily administration. Required for the development and colouring of corals. Essential for the moulting of crustaceans. Important for many species of algae. Promotes the light adaptation and coloration of soft corals, particularly stony corals. Dosage: At normal stock levels, 2 drops daily for every 100 l of aquarium water. The dosage can be increased in cases of higher iodine requirments due to higher