Concrete Koi Ponds · Gravity Filtration · Living Art

We make koi ponds
for koi people. Custom concrete koi ponds with gravity filtration by Select Ponds of America.

Custom concrete koi ponds and gravity filtration, created as living art for the world’s most serious koi collectors — across America and beyond.

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Shinkokai Judge — Japan
AJYKS Grand Champion B
Botan of Botans — Japan
Featured — NHK National News
Filtreau Ambassador — Netherlands
Gravity Filtration Systems◆ Collector-Grade Koi Environments◆ Concrete Pond Construction◆ Filtreau Ambassador — USA◆ Natural Stone Edging◆ LED Waterfalls & Water Movement◆ Japanese Koi Sourcing◆ Architectural Collaboration◆ Gravity Filtration Systems◆ Collector-Grade Koi Environments◆ Concrete Pond Construction◆ Filtreau Ambassador — USA◆ Natural Stone Edging◆ LED Waterfalls & Water Movement◆ Japanese Koi Sourcing◆ Architectural Collaboration◆

The standard others
are measured against.

Select Ponds of America is led by Hunter Nieman — an artist first, a Shinkokai-certified koi judge, and a gravity filtration specialist whose concrete koi ponds are home to some of the finest koi collections in the world.

We are not contractors. Every pond is an original creation, and we personally choose each project to make sure it is the right fit for our work. We collaborate with your architects, engineers, and builders so that every structural and filtration decision serves the koi — for generations.

Our signature work includes six koi ponds created for renowned collector Herbert Fritch: three inside a 10,000 sq ft greenhouse and three more inside a 6,500 sq ft greenhouse. These projects were featured in videos published by The Koi Partner on YouTube.

As the official Filtreau Ambassador for the United States, we bring the finest European filtration technology directly to American projects — combined with hands-on expertise no catalog can replicate.

From private estates to landmark public installations — if it holds koi, it deserves to be built right.

6
Ponds for Herbert Fritch
20+
Years of Expertise
JP
Direct Japan Sourcing
16,500
Sq Ft of Greenhouse Koi Ponds
Services

What we do — and what we
do better than anyone.

01
Gravity Filtration Design

We design and install gravity-fed filtration systems that deliver optimal water quality, biological balance, and long-term fish health — engineered for each unique environment using Filtreau's industry-leading technology.

02
Koi Pond Consultation

We work with your architect, engineer, or general contractor from the earliest design phase. Our expertise ensures every structural and filtration decision supports the long-term health of your koi environment.

03
Concrete Pond Construction

Custom concrete koi ponds with bottom drains, natural stone edging, elegant forms, and LED water movement — engineered around gravity filtration from day one. Every pond we build is designed to become a permanent landmark on your property.

04
Service & Maintenance

Ongoing service agreements for discerning collectors who demand consistent, expert attention to their investment. We maintain the environments we build — and others we haven't.

05
Filtration Supply

As Filtreau's US Ambassador, we supply premium European gravity filtration components to qualified installers and builders nationwide. The finest systems, sourced direct.

06
Architectural Collaboration

Complex, large-scale, or public koi installations require a specialist embedded in the design process. We bring the technical knowledge your team needs — without replacing the professionals already on your project.

Portfolio

Built to last.
Designed to inspire.

A selection of our concrete koi ponds, gravity filtration systems, and natural stone water features — from private estates to indoor greenhouse koi facilities.

Custom concrete koi pond with natural stone edging, wooden bridge and planted island
Concrete Koi Pond — Natural Stone, Bridge & Island
Mountain estate koi pond built for collector Herbert Fritch
Mountain Estate — Herbert Fritch Collection
Large indoor koi pond inside a greenhouse built for Herbert Fritch
Indoor Greenhouse Koi Ponds — Herbert Fritch
Koi pond with natural stone stream, waterfall and Filtreau gravity filtration
Natural Stream Koi Pond — Filtreau Filtration
Natural stone stepping stones and moss garden beside a koi pond with waterfalls
Natural Stone Steps & Moss Garden
Koi swimming below a multi-tier natural rock waterfall
Multi-Tier Waterfall Koi Pond
Natural boulder waterfall and stream feeding a koi pond
Natural Boulder Waterfall & Stream
Japanese garden koi pond with niwaki pines and natural stone
Japanese Garden Koi Pond
Collector-grade koi in crystal clear water maintained by gravity filtration
Gravity Filtration — Collector-Grade Water Clarity
Concrete koi pond shell under construction with formed walls
Concrete Koi Pond Construction
Filtreau gravity filtration system and bio drum installed for a koi pond
Filtreau Gravity Filtration Installation
Best of Botan Prize koi at the All Japan Combined Koi Show
Botan of Botans — All Japan Show 2026
Credentials

Recognition earned in
the most demanding arenas.

🏆
AJYKS Grand Champion B

Top prize won by any American dealer at the All Japan Young Koi Show

🎌
Shinkokai Judge

Certified Shinkokai member and Japanese koi judge — one of very few in the United States

🌸
Botan of Botans

Best of Best Botan Koi — Japan's most prestigious varietal award, 56th All Japan Show 2026

🇳🇱
Filtreau Ambassador — USA

Official US Ambassador for Filtreau, the Netherlands' premier gravity filtration manufacturer

📺
NHK National News

Featured on Japan’s national broadcaster, plus The Koi Partner on YouTube, international TV, podcasts, and publications

Grateful to Japan’s breeders.

The Zen Nippon Nishikigoi Shinkokai — the All Japan Nishikigoi Promotion Association — is Japan’s association of professional koi breeders and dealers, based in Niigata, the birthplace of nishikigoi. It organizes the All Japan Koi Show in Tokyo, the event that decides the world’s top koi each year.

Hunter Nieman was honored to be invited to join by the breeders themselves. He sees it less as a title and more as a responsibility: to respect the koi, the families who devote their lives to raising them, and the traditions of Niigata — and to keep learning from them.

For our clients, it means every koi we recommend and every pond we create is approached with the care and respect for the fish that we have learned from Japan’s breeders.

Rates & Booking

Transparent pricing.
Exceptional expertise.

Savannah Nieman
Pond & Landscape Design
$200
per hour
2 hour minimum — $400 to book
  • Pond design & layout
  • Landscape integration
  • Plant container design
  • Visual concept development
  • 3D design rendering
Eric Olney
Labor Tech
$200
per hour
Available for on-site support
  • Filtration installation
  • On-site technical support
  • System diagnostics
  • Equipment assembly
  • Site visits available
Koi purchases

Koi purchased through Select Ponds of America are sourced from our partner dealers in Japan and are subject to import costs and tariffs. Import laws and regulations are subject to change.

Koi prices include shipping to the USA but do not include domestic shipping charges.

Contact

Your pond starts
with a conversation.

Office
7213-2 Kingston Pike
Knoxville, TN 37919
Service Area
Nationwide & International
Projects accepted globally
Stay in touch

Koi arrivals, pond tips
and offers.