Koi Show Health Requirements: What Organizers Expect

By KoiQuanta Editorial Team|Updated Mar 2026

KHV-infected fish have been removed from koi shows. Show organizers take health requirements seriously because a single infected fish at a show can expose hundreds of fish from dozens of different collections to a pathogen that can devastate an established pond.

KoiQuanta's health records can support AKCA and ZNA show health declaration requirements. No competitor generates show health declarations from fish records.

TL;DR

The PCR test is the gold standard for KHV detection with over 95% sensitivity when samples are collected correctly.
Most major shows require a signed health declaration from exhibitors stating that their fish have shown no disease signs in the preceding 30-60 days and haven't been exposed to known disease.
Check the observation log for the past 30-60 days confirming no disease events.
Early detection based on parameter trends reduces treatment costs and fish stress.
Seasonal changes require adjusted monitoring schedules; automated reminders help maintain consistency.

Why Shows Have Health Requirements

Koi shows are events where fish from many different sources come into close proximity for a period of days. This creates a significant disease transmission risk. Fish share show water (pond water is moved with the fish, and show facilities circulate water to different degrees), share air space, and stress each other through the competition environment.

The most serious concern at shows is KHV (Koi Herpesvirus). KHV is one of the most serious diseases in koi keeping, causes significant mortality in affected collections, and has no cure. Show organizers have removed fish from shows when KHV has been suspected or confirmed, and several significant show disease events in recent years have driven stricter health requirements.

SVCV (Spring Viremia of Carp) is a reportable disease in the US and many other countries. Show organizers take any potential SVCV exposure very seriously.

What Show Organizers Typically Require

Requirements vary significantly between show organizations (AKCA, ZNA, regional clubs), and you should always check the specific requirements for each show you enter. General categories include:

Health Declaration

Most major shows require a health declaration signed by the exhibitor. This typically states that:

The fish have not shown disease signs in the defined period before the show (typically 30-60 days)
The fish have not been exposed to known disease (particularly KHV)
No fish in the exhibitor's collection have died from unknown causes in the recent period
The exhibitor acknowledges the show's disease protocols and rules

The declaration is based on your knowledge of your fish's health history. KoiQuanta's health log provides the documented basis for completing this declaration accurately: you can review your actual observation records rather than relying on memory.

Pre-Show PCR Testing (Some Shows)

An increasing number of major shows, particularly those affiliated with Japanese koi organizations or high-profile competitive events, require PCR testing for KHV before entry. The PCR test is the gold standard for KHV detection with over 95% sensitivity when samples are collected correctly.

PCR testing requirements vary:

Some shows require testing of all entered fish
Some shows require testing only of fish imported from Japan or other high-risk regions
Some shows accept testing done within a specific window (typically 30-60 days before the show)

If the show you're entering requires PCR testing, you'll need to work with a veterinarian or certified laboratory to collect samples and submit them. KoiQuanta supports linking PCR test results to specific fish records so your documented test result is part of the fish's permanent health record.

On-Site Inspection

Some show organizers conduct on-site health inspections of fish at arrival. An experienced volunteer or official briefly examines each fish for obvious disease signs before it's placed in the show vat.

Be prepared to have your fish inspected and to have a fish rejected if it shows obvious disease signs. Bringing clearly sick fish to a show is harmful to other exhibitors and will damage your reputation in the local koi community.

Show Rules on Medications

Many shows prohibit bringing medications to the show or adding any treatment chemicals to show vat water. Understand your show's rules on this before attending. Some shows have strict policies; others allow limited interventions for obvious emergencies.

Preparing Your Documentation

KoiQuanta makes show health documentation preparation straightforward.

For each fish you plan to enter, review:

Health event log for the past 60 days: any disease events, treatments, or concerns
Observation records for the past 30 days: consistent clean observations or any flags
Water quality records: parameter stability shows a well-managed pond
PCR or other lab test results if applicable

From your KoiQuanta records, generate:

A health record export for each entered fish showing the observation history and any test results
If the show requires a specific declaration form, your KoiQuanta records provide the accurate source data for completing it

The koi show preparation guide covers the full preparation timeline for competitive shows.

Post-Show Quarantine

Even if your fish weren't exposed to anything visible at the show, post-show quarantine is good practice. Shows are high disease risk events, and fish that were healthy at the show may have been exposed to pathogens that will manifest after they return home.

KoiQuanta's show transport event logging automatically triggers a post-show quarantine recommendation when you log a show return event. The recommendation includes:

Minimum quarantine period (typically 2-3 weeks for show-returned fish)
Elevated observation schedule for the first 10 days
Water parameter monitoring reminders

The koi treatment journal in KoiQuanta captures this post-show observation period as a formal record.

Frequently Asked Questions

What health requirements do koi shows have?

Requirements vary by show organization. Most major shows require a signed health declaration from exhibitors stating that their fish have shown no disease signs in the preceding 30-60 days and haven't been exposed to known disease. Some shows require PCR testing for KHV, especially for imported fish or at the highest competitive levels. Most shows conduct some degree of on-site health inspection at arrival. Check the specific requirements for each show you plan to enter well in advance, as testing requirements may have a lead time that requires planning.

Do koi shows inspect fish before entry?

Many shows conduct on-site health checks at fish arrival. An experienced show official or volunteer examines each fish for obvious disease signs before placing it in the show vat. Fish showing obvious disease signs may be rejected from entry. This isn't a diagnostic examination, but it catches clearly unwell fish that shouldn't be in a shared show environment. At some higher-level shows, this inspection is more rigorous and may include brief gill examination. Being prepared for this inspection means ensuring your fish are genuinely healthy before attending.

How do I document my koi's health for a show entry?

Review your KoiQuanta health records for each fish you plan to enter. Check the observation log for the past 30-60 days confirming no disease events. Review water quality records showing a stable, well-managed pond. If the show requires PCR testing, ensure results are logged in KoiQuanta and linked to the specific fish. For shows requiring a signed health declaration, use your KoiQuanta records as the source data for completing it accurately. If the show accepts or requests health documentation beyond the basic declaration, export the health record for relevant fish as a PDF from KoiQuanta.

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Sources

Associated Koi Clubs of America (AKCA)
Koi Organisation International (KOI)
University of Florida IFAS Extension Aquaculture Program
Fish Vet Group
Water Quality Association