I found George's web site a few years back when researching bonsai's. I have always enjoyed his garden and visit many times to get ideas and to relax. He started his garden because he raised koi. It's been a labor of love for some 30 plus years. It's very informative as well. He has many "how to's".
I hope you enjoy and I hope the link works.http://koi-z-are-us.20m.com/
Cool website George has there. :)
This guy lives in your neck of the woods. Thought maybe you might have run into in with your koi shows. Yorshire, I believe. I'm not sure where you reside.