Widely used in Japan as a fungicide and bactericide and to assist koi in times of stress, for example after spawning or transportation.g

Widely used in Japan as a fungicide and bactericide and to assist koi in times of stress, for example after spawning or transportation. Often used with salt. Can be used as a supportive treatment when dealing with bacterial infections. Add 5-10g per ton of water. Supplied in 100g bag.