This weekend I went to the annual koi festival @ Mystic Koi in Upland, CA. I picked up a total of 5 jumbo tosai including two kohakus, one sanke, and a pair of koromos. They range in size between 10" and 14". Expect photos to be posted on my site soon... Our Backyard Paradise

Are they japanese or common?

Wow! Your fish and ponds are beautiul! THe name (backyard paradise) really fits it!