MINAROLL is a unique composition of trace elements, vitamins and minerals. It provides your fish with the quantities they need for a healthy life.  Increases resistance against disease. Corrects vitamin deficiencies. Stimulates recovery from illness. Can be used in Tropical, Coldwater and Seawater aquariums. Reduces fish stress. MINAROLL is especially good for fish that do not have a natural food supply at their disposal. It also provides additional support for fish undergoing growth spurts, breeding or spawning