The balanced mixture if active substances and trace elements in the Tropic Marin Pro-Discus Mineral (formaly Diskus-Salt) improves the supply of necessary minerals. With young fish and brood stock it enhances the resistance against disease and damage to the skeletal structure and generally improves the willingness to spawn. For regeneration of reverse osmosis water or for direct addition in the aquarium. Tropic Marin Pro-Discus Mineral contains selected mineral chlorides, carbonates and sulfates of sodium, magnesium, calcium and more than 50 important trace elements mainly as their chlorides. It does not contain sodium chloride. The use of Tropic Marin Pro-Discus Mineral also helps prevent shortened gill covers and stunted fins as well as delayed growth in young fish. For adding salt to osmosis water or for a direct addition to fish tanks.Tropic Marin Pro-Discus Mineral+ enhances the resistance against disease and damage to the skeletal structure and generally improves the willingness