Aquasonics Goldfish Water Conditioner contains a mixture of 9 different salts, which provides natural minerals, trace elements, fungal and bacterial inhibitors for all goldfish, koi tanks and ponds. Goldfish Water Conditioner helps bring out natural vibrancy and colouration of fish and improves the health and well being of the fish. Goldfish Water Conditioner will raise hardness by ~120ppm and salinity by ~225ppm, when used at the recommended dose rate. For best results add Goldfish Water Conditioner when starting up an aquarium or pond, or after a water change is performed.