Koi Farm Guide which you can find at KoiFarmGuide.com is a website started by a guy named JT Abney. It features an eBook that claims to help anyone who are interested in starting their ornamental fish business. According to Abney, this is a billion-dollar industry in United States especially that raising ornamental fish is the top 2 hobby of Americans (second to photography). Hence, there’s a great opportunity waiting for someone who’s into raising Koi.