Who Am I: The Experience Behind the Koi Diseases & Treatment Guide

Who Am I — And Why This Koi Treatment Guide Exists

My name is Jason Michael, and I have spent over 30 years working in aquaculture and ornamental fish health. This guide exists because I have watched the same mistakes repeat for decades not because koi keepers don’t care, but because they are often given advice that is conflicting, impractical, or rooted in fear rather than real-world conditions. 

My Background

My experience spans professional aquaculture systems and private koi ponds, covering both large-scale operations and individual hobbyist environments. Over the years, my work has included large aquaculture and holding systems, public aquarium environments, quarantine and biosecurity management, disease identification and treatment protocols, and both domestic and high-end Japanese koi imports.

Across these settings, I have worked with millions of fish under a wide range of water conditions, stocking densities, and health challenges. I have seen what works, what fails, and what ultimately costs fish their lives. The protocols shared throughout this site are not theoretical concepts or borrowed opinions. They are built from outcomes observed repeatedly over decades of hands-on experience.

Why I Built This Resource

Most koi health information available online falls into one of two extremes. One side oversimplifies complex biological processes, offering advice that ignores how fish actually respond to stress, parasites, and water quality breakdowns. The other side overcomplicates treatment, requiring microscopes, laboratory diagnostics, and ideal conditions that the majority of pond owners simply do not have.

Neither approach serves the average koi keeper.

This resource was built to bridge that gap by providing practical, experience-based guidance that can be applied safely and effectively in real ponds, not just idealized scenarios.

My Approach to Koi Health

Everything in this guide is built around a few core principles. Disease does not occur randomly. Most health problems begin with stress, parasites, or water quality instability. Early action prevents escalation. Behavioral changes matter more than labels. Proactive management saves fish.

I do not believe in reckless treatment, panic dosing, or throwing random chemicals into ponds. I also do not believe in waiting for perfect certainty while fish continue to decline. The goal is informed, calculated action based on observation, context, and experience.

Why Trust This Information

The advice shared here reflects decades of hands-on work that includes success, failure, and continuous refinement. Many of the koi I have helped were written off by others or told to “wait and see.” Those fish survived because someone took informed action rather than doing nothing.

This resource exists to give pond owners the knowledge and confidence to do the same.

Frequently Asked Questions

Is this guide based on theory or experience?
This guide is built from decades of direct aquaculture and koi health experience, not theoretical models or secondhand advice.

Is this guide beginner-friendly?
Yes. The goal is to provide clear, actionable information without oversimplifying or overcomplicating koi health management.

Does this guide promote reckless treatment?
No. The focus is on informed, calculated intervention — not panic dosing or random chemical use.

 

Written by Jason Michael, a 30-year aquaculture professional and founder of Krazy Koi Meds, with decades of hands-on experience treating koi and ornamental fish.

Return to the Koi Diseases & Treatment Guide