Tropic Marin All for Reef is a overall mineral supply for reef aquariums. Tropic Marin All for Reef is an easy- to-use, highly concentrated solution for the supply of ALL essential minerals and trace elements in new or moderately stocked reef aquariums. Minerals are consumed through the growth of organisms and other processes in the aquarium and must therefore be supplemented regularly. These include mainly the necessary elements calcium, magnesium and strontium and carbonate hardness elements for the growth of the calcareous skeletons of stony corals, red coralline algae and other reef organisms. Tropic Marin All for Reef contains all these components in highly concentrated form and also contains the most important trace elements: Iodine, bromine and fluorine for growth and stabilisation of the skeletons of stony corals, sponges and crustaceans. Selenium to eliminate free radicals as well as molybdenum and vanadium for the establishment of important enzyme complexes.With these compone