A Deep pond can even enable it to be less complicated for koi to remain within the pond all through Winter season. Drinking water can freeze any where concerning 18–24 inches deep in a pond. Making sure your pond is deep ample will prevent your fish from freezing. Mechanical Filtration https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah