Kohaku are white koi with red markings and are the most popular variety in Japan and much of the world. Ideally the red markings should be deep in colour and uniform shade with the edges of the pattern well defined. The base white should be a clean 'snow' white.

Kohaku are white koi with red markings and are the most popular variety in Japan and much of the world. Ideally the red markings should be deep in colour and uniform shade with the edges of the pattern well defined. The base white should be a clean 'snow' white.

Performing regular, parial water changes is a great way to maintain optimal water quality. Changing 10%-15% of the pond water every week or 2, helps to flush out nitrates, tannins and other waste products while replenishing essential minerals.