To understand the problems and illnesses associated with being a Koi enthusiast, we first need to understand "normal" Koi health and behavior, so the first series of links are going to give you information about what is to be expected with healthy Koi.

The second set of links will give you information about Koi illnesses, the common diseases that afflict Koi, how to identify them and most importantly- how to treat a sick Koi.

Healthy Koi

We are going to start at the very beginning, with Koi anatomy. Here is a very good, Koi anatomy link.

This article provides you some points on how to "observe" you pond, with an eye for looking for trouble.

General Diseases and Treatment

FishDoc has some very interesting Koi disease movies

AKCA Library of Koi Disease

Dr. Johnson’s website, search the site for either “symptoms” or “parasites”

Pond Doc’s site on parasites and treatment

This website will help you Identify possible diseases

AKCA has a very good Library of Meds

These tips are for retailers, you can see what the trade thinks about some of these diseases

Freshwater Fish Parasites, an introduction by the Florida Extension Service

Fish Parasites 101, Texas Koi Society article on parasites

Diseases of Fish compiled by Armed Forces Institute of Pathology

Microscope Diagnosis of common parasite infections of fish

Slides from the University of Manitoba

South Dakota State University PowerPoint presentation on Fish Disease