Kordon Fish Protector - Fish Protector is a professional quality water treatment that calms fish, reduces losses, eases stress, minimizes infection and aids healing - thereby helping to protect fishes during handling, illness and transportation. Fish Protector detoxifies the free ions of the heavy metals present in public water supplies, such as zinc, iron, lead, copper, and arsenic, which can be lethal to fishes and invertebrates. The coating, with the addition of vitamin B12 and increased Echinacea, works as an effective healing aid for fishes with bruises, missing scales, or frayed fins, all of which aids in the normal healing process of injured fishes.