How to Keep Koi Healthy


How to Keep Koi Healthy. Part of the series: Aquariums, Ponds & Fish Care. Keeping koi healthy requires maintaining a well-aerated pond, keeping the water cool, putting a rock salt in the water and changing the water every two weeks. Keep koi fish healthy with instructions from a koi breeder and aquarium specialist in this free video on fish care. Read more: http://www.ehow.com/video_4766200_keep-koi-healthy.html