KOI USA Magazine The magazine for all koi enthusiasts

Koi Carp and Fish Ponds Information: A beginner's guide to keeping Koi fish in a backyard recirculated freshwater pond.

Tennessee Aquaculture Association Farming the waters of Tennessee. It's all about the water!

Planet Koi KInformation about koi carp and ponds

Koi Cymru Koi Cymru is to promote the keeping of koi and shows how to build large concrete fish ponds. ...

Malaysia Koi Forum Koi Lovers from any part of the world are invited to join our Koi Forum to discuss anything about Koi.

Ultimate Koi Clay Koi Clay is 100% calcium bentonite/montmorillonite clay powder that replaces the minerals and trace elements that are depleted or lacking in your pond water.

Pond Rushes Great information site with pond project calculators.

Roark's Site Plenty of great information for the chemically challenged. You will need to register to gain access.

Koi Village Quality products and koi at great prices!

Associated Koi Clubs of America Lots of information about koi and ponds. You can find a list of all the AKCA koi clubs in the US.