Platinum Ogon, or Purachina, are white koi whose body shines with the same luster as the precious metal. These first appeared in 1963, probably from out crossing Kigoi with the grayish-silver Nezu (short for the Japanese word for rat, nezumi) Ogon - which remains a variety in its own right.
At about the same time, the Cream Ogon became popular. This is a metallic koi, midway between a Purachina and a Yamabuki Ogon. Examples of this breed are very rare.
For many of us, our ponds are beginning to warm (or will soon be). Water temperature, not the ambient air temperature, is the gauge for what to do and when to do it in regards to your pond. Water temperature should be checked at approximately 1 foot of depth. Avoid feeding your fish until the water temperature is consistently above 50 degrees Fahrenheit. This will also be the time to start adding spring maintenance bacteria and enzyme treatments.
