Mark your calendars! The 2025 Koi Show is fast approaching, and there’s something for everyone at this fun, family-friendly event. Visit the club’s koi show webpage for registration forms and full event details (https://uppermidwestkoiclub.org/2025).

What to Expect:

• Enjoy a vibrant koi show and browse offerings from a variety of vendors

• Grab a bite at the food truck, bid on items in the silent auction, and let the kids join the coloring contest.

• Chat with experienced club members who will be available to answer your questions.

• Learn from certified koi judges as they explain what makes a koi a true winner!

Exhibitors:

Tank space is limited—reserve yours now to ensure a spot at the show. Don’t miss your chance to exhibit!

Sponsorship Opportunities:

A big thank-you to all our current Show and Award sponsors! Many sponsorships are still available. If you'd like to support the event, fill out the Show/Awards Form in the Exhibitor Packet or visit the club koi show webpage to sponsor via PayPal and the online form.

Vendors:

We're excited to offer free booth space to dry goods vendors this year! If you’re interested in joining as a vendor, head to the koi show site and complete the Vendor Packet.

Volunteers Needed:

We’re looking for enthusiastic volunteers to help make this event a success. Tasks include setting up and tearing down tanks, helping at the club booth, and more. As a thank-you, each volunteer will receive a free show t-shirt! Please fill out the Volunteer Form in the Exhibitor Packet or simply email membership@uppermidwestkoiclub.org.

The 2025 35th Annual Rocky Mountain Koi Show and Aquatic Expo will be held on Labor Day Weekend at the Douglas County Fairgrounds - 500 Fairgrounds Rd, Castle Rock, CO 80104, in the Large Animal Barn (new building for 2025!)

General Information

What to expect - This is a FREE family friendly event, bring your kids, grandkids, friends, neighbors, and family.  You'll see around 30, 500 gallon classic blue tanks with some of the most beautiful and highest quality koi that are not only from around Colorado but from other states as well.  Some of the fish are worth many tens of thousands of dollars, so if you've never been to a koi show this is a unique opportunity.

Around the show you'll meet volunteers who are happy to tell you about the koi and we'll have educational materials (including actual koi teeth) for your educational pleasure.

We'll also likely have aquatic items, such as art, food, books, chemicals, pumps, filters, etc. for your pond and aquariums.  This year we're expanding our footprint and are thrilled to welcome vendors who support the aquarium hobby for both freshwater and saltwater fish and reef keepers.

We some of our "wet" koi vendors come from across the country to make available some high quality koi from Japan.  If you purchase one of those fish prior to 9am on Saturday, you can even enter it into our Koi Show to compete for awards.

We will have a silent auction, limited edition Koi Show Pins (hot collector's item!), and other goodies.

Entertainment - We're still putting together details for the entertainment this year but we'll absolutely have our koi mascot walking around, who will be happy to pose for pictures!  Stay tuned for more details that will be posted here.

We will have some speakers talking about aquatic topics, some topics in years past have included koi health, food, and other interesting discussions.

On Sunday we will have a walk through with our official ZNA judges who will walk around to various tanks and talk about the fish and their thoughts and they performed their judging duties.  Learn what they look for, what was good and not so good about various fish.  Feel free to ask questions!

Food - We are looking to have a coffee cart available on Saturday morning, at least one food truck that will be around for lunch on Saturday and possibly beyond.  We will have an opportunity for folks to welcome and meet our judges at our Judge's welcome dinner on Friday night, and we will have our Award Dinner on Saturday night, tickets are available now through our Club Store, details about food etc. to come.

Awards - For the last few years the Rocky Mountain Koi Show gained international attention for our incredible awards (which may or may not have caused grown men to act out their childhood fantasy of being king of the wrestling ring).  This year we are again raising the bar and offering some incredible and unique Colorado inspired top awards.  YOU DON'T WANT TO MISS OUT...become an exhibitor and enter your koi!

As in prior years, we will have an award dinner and ceremony on Saturday night after the show.  Details are still pending so keep checking back but we're looking to raise the bar this year for the dinner!  Tickets can be purchased in our Club Store, which will get you a wrist band that is required for entry.

Lodging - We have hotel room blocks at two local hotels this year.  The Holiday Inn Express at 610 Genoa Way in Castle Rock CO and Best Western at 595 Genoa Way in Castle Rock CO.  These discounts are good till the cutoff date of July 29th at 3pm Mountain or until there are no more rooms left in the discounted block.  Here are the links:

Join us for our annual koi show! There will be over 200 koi on display that will be judged by judges from around the world. We will also have vendors on site selling koi and koi supplies for your pond!
Hours:
1pm-5pm Friday
9am-5pm Saturday
9am-Noon Sunday

The Northern Midwest Zen Nippon Airinkai Koi Club is a regional chapter of an international organization based in Beppu, Japan. Our goal is to spread the hobby of Koi (Nishikigoi) keeping and to improve the knowledge of the husbandry techniques and the appreciation of Nishikigoi as living art.

Admission is free and everyone is invited. Numerous Home & Garden, Yard, and Water Garden vendors will be on site. This show is our premier event of the year where we proudly feature the best of the best. Our sincere thanks to the city of Simpsonville for their assistance in making this event a success, and to all our vendors, many of whom have traveled great distances to be part of our show and to help make this the largest single club show on the east coast.

Friday 2pm to 6pm
Sat: 9am to 6pm
Sun: 9am to 1pm

The Central California Koi Society (CCKS) is hosting its 45th annual Fresno Koi Show on Saturday-Sunday, September 27-28, 2025, in partnership with the Shinzen Friendship Garden and presented by Hikari USA!

Thank you to Champion Nishikigoi for sponsoring the amazing auction and Nijikawa USA for being a Gold sponsor (flyer will be updated soon)!

Admission to the koi show is free and open to the public. Set-up and koi entry day is Friday, September 26, 2025.

Get involved in the 2025 Fresno Koi Show! Sponsorship Opportunities, Exhibitor Packet, Vendor Packet, and Fresno Koi Show Flyer are available to download below. Contact Rosimeri Tran, Show Chair, at cencalkoi@gmail.com for information.

Celebrate Three Decades with us!

Join us for a milestone event as we proudly present the 30th Annual Koi & Goldfish Show — a weekend-long celebration of vibrant koi, dazzling goldfish, and the passionate community that has supported this tradition for 30 years.

Whether you're a seasoned hobbyist, a curious newcomer, or simply love the beauty of ornamental fish, this event offers something for everyone. Come admire stunning koi and goldfish from top breeders and hobbyists, shop with specialty vendors, attend educational seminars, and enjoy family-friendly activities.