Cascade Koi & Aquatics have recommended Esha Minaroll Trace Elements, Vitamins & Minerals for many years. Esha Minaroll is a unique composition of trace elements, vitamins and minerals. It provides your fish with the quantities they need for a healthy life. Esha minaroll increases resistance against disease and corrects vitamin deficiencies. Esha minaroll stimulates fish recovery from illness and 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.