GC Koi Farm | Koi Fish For Sale | Pond Supplies

NEWLY HARVESTED FALL 2024 - SHIP END OF NOVEMBER

DAINICHI BLOODLINE ALL FEMALE 12"-14" BOWL 1
From $300.00

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DAINICHI BLOODLINE GOSANKE 18”-19” ALL FEMALE
$700.00

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HIGH QUALITY HIROI GR GOSHIKI 18”
From $600.00

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HIGH QUALITY SAITO KOHAKU 16"-17" DAINICHI BLOODLINE
$1,000.00

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HIROI DOITSU SANKE-SHOWA-TANCHO OCHIBA 14"-16"
From $600.00

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HIROI DOITSU SANKE-TANCHO KOHAKU & GOSHIKI 19"-20"
$800.00

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HIROI TANCHO GOSHIKI - TANCHO KOHAKU 17”-19”
From $700.00

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MARUHIDE DOITSU GOSANKE 16”-18”
$600.00

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MARUHIRO BOWL #1
From $600.00

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MARUHIRO BOWL #2
$600.00

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OTSUKA MIX BOWL 15”-16”
From $500.00

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SAITO DAINICHI BLOODLINE 18”-20” ALL FEMALE CERTIFICATE
$1,000.00

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SAKAZUME GINRIN PLATINUM 16”-18”
$450.00

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SAKAZUME KIN KABUTO 16"-18"
$450.00

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SHOW QUALITY SAITO KOHAKU 17"-19" DAINICHI BLOODLINE
$1,400.00

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TANAKA GINRIN YUKI ASAGI 16"-18"
$500.00

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TANAKA MIX BOWL 15"-16"
$500.00

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ISA SHOWA BUY 1 GET 1 FREE

ISA SHOWA #95
$295.00 $350.00

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ISA SHOWA #71
$295.00 $350.00

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ISA SHOWA #63
$295.00 $350.00

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ISA SHOWA #62
$295.00 $350.00

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ISA TANCHO KOHAKU TOSAI WITH CERTIFICATE

ISA TANCHO KOHAKU 8"-10" #5K
$195.00 $250.00

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ISA TANCHO KOHAKU 8"-10" #5H
$195.00 $250.00

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ISA TANCHO KOHAKU 8"-10" #5A
$195.00 $250.00

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ISA TANCHO KOHAKU 8"-10" #4K
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #3E
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #2N
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #2H
$295.00 $350.00

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ISA TANCHO KOHAKU 9"-11" #2D
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #2B
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #1E
$195.00 $250.00

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ISA TANCHO KOHAKU 9"-11" #1D
$250.00

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ISA TANCHO KOHAKU 9"-11" #1C
$250.00

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Karashigoi

BEST SELLING PRODUCTS

Nijikawa Growth Koi Food - Floating - GC KOI — Nijikawa Growth Koi Food - Floating
From $90.00

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Periha PB Submersible Water Pump with Variable Speed - GC KOI — Periha PB Submersible Water Pump with Variable Speed
From $179.00

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Elbagin (Yellow Powder Pafurazine F) 50g - GC KOI — Elbagin Antibiotics (Yellow Powder Pafurazine F) 50g
$34.95 $39.95

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Koi Sock Nets - GC KOI — Koi Sock Nets
$39.95 $49.95

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Nijikawa Professional Food - Sinking - GC KOI — Nijikawa Professional Food - Sinking
From $150.00

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Ceramic Bacteria House Round Filter Media 154pcs - GC KOI — Ceramic Bacteria House Round Filter Media 154pcs
$159.00 $199.00

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Nijikawa Four Seasons for Cold Weather 15lbs - 5mm Floating - GC KOI — Nijikawa Four Seasons for Cold Weather 15lbs - 5mm Floating
$85.00

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ProForm-C Broad Spectrum Disease Treatment - GC KOI — ProForm-C Broad Spectrum Disease Treatment
From $49.00 $49.99

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Grech Automatic Solar Pond Fish Feeder - GC KOI — Grech Automatic Solar Pond Fish Feeder
$189.00 $297.00

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AMAX Submersible Variable Flow AC Water Pump 7925 GPH - GC KOI — AMAX Submersible Variable Flow AC Water Pump 7925 GPH
$295.00 $379.00

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Mountain Tree Lotus Bacteria House II - GC KOI — Mountain Tree Lotus Bacteria House II
$209.00 $240.00

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AMAX BAKKI SHOWER 40 - FREE 4 BOXES OF CERAMIC MEDIA
$1,620.00 $1,800.00

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AMAX BAKKI SHOWER LARGE 60 - FREE 6 BOXES OF CERAMIC MEDIA
$1,980.00 $2,200.00

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API Pond Ammonia Test Kit 130 Tests - GC KOI — API Pond Ammonia Test Kit 130 Tests
$19.95 $25.00

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Aqua RDF 20 - GC KOI — Aqua RDF 20
$3,600.00

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Evolution Aqua Cetus Sieve - Pump or Gravity Fed - GC KOI — Evolution Aqua Cetus Sieve - Pump or Gravity Fed
$1,359.99

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Sequence 750 Series Pumps - GC KOI — Sequence 750 Series Pumps
From $583.00

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EBD4A - EasyPro 4" Heavy Duty Bottom Drain with Air Diffuser - GC KOI — EBD4A - EasyPro 4" Heavy Duty Bottom Drain with Air Diffuser
$212.00 $235.00

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Rhino Retro 2" and 3" Bottom Drains With Diffuser - GC KOI — Rhino Retro 2" and 3" Bottom Drains With Diffuser
From $272.00

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Savio Compact Skimmerfilter & 8½" Weir Assembly - GC KOI — Savio Compact Skimmerfilter & 8½" Weir Assembly
$348.00

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MORE BEST SELLING PRODUCTS

POND FILTRATION

FREE DRUM FILTER 20 - 5000 GPH
$3,450.00

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Evolution Aqua Nexus 220 (4,800 Gal) Filtration Systems - GC KOI — Evolution Aqua Nexus 220 (4,800 Gal) Filtration Systems
$2,250.00 $2,879.00

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Aqua Shower Eco - GC KOI — Aqua Shower Eco
$3,600.00

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Aqua Bio - GC KOI — Aqua Bio
$3,400.00

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Aqua RDF 50 - GC KOI — Aqua RDF 50
$4,700.00

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Aqua RDF 35 - GC KOI — Aqua RDF 35
$4,200.00

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Aqua Ultraviolet Ultima II 20000, 2" Ports - GC KOI — Aqua Ultraviolet Ultima II 20000, 2" Ports
$3,353.00 $4,790.00

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Aquadyne 1000 Bead Filter - GC KOI — Aquadyne 1000 Bead Filter
$1,599.00 $1,995.00

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Evolution Aqua K+ Advanced Pressure Filter 24000 - GC KOI — Evolution Aqua K+ Advanced Pressure Filter 24000
$3,899.00

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Evolution Aqua K+ Advanced Pressure Filter 14500 - GC KOI — Evolution Aqua K+ Advanced Pressure Filter 14500
$3,199.00 $3,499.00

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Evolution Aqua K+ Advanced Pressure Filter 9600 - GC KOI — Evolution Aqua K+ Advanced Pressure Filter 9600
$2,499.00 $2,799.00

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Evolution Aqua K+ Advanced Pressure Filter 4800 - GC KOI — Evolution Aqua K+ Advanced Pressure Filter 4800
$2,259.00 $2,599.00

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SHOWER Filter - Weir Output - GC KOI — SHOWER Filter - Weir Output
From $3,450.00

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FREE DRUM FILTER 60 - 15,000 GPH - GC KOI — FREE DRUM FILTER 60 - 15,000 GPH
$5,350.00

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FREE DRUM FILTER 30 - 8000 GPH - GC KOI — FREE DRUM FILTER 30 - 8000 GPH
$3,950.00

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MORE POND FILTRATION

KOI BLOGS

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HOW TO WINTERIZE A POND: FALL POND CARE

When fall arrived and winter is around the corner, there's more than just your home and garden that needs preparing. Your koi pond also beckons for some attention. Just as you would winterize your home's plumbing, a koi pond too needs winter care.

A COMPREHENSIVE GUIDE ON HOW TO QUARANTINE NEW KOI

Are you planning to introduce new koi to your pond? Quarantining your new koi is crucial to ensure the health and safety of your existing koi population. In this blog, we will discuss the importance of quarantine and provide you with a step-by-step guide on how to properly quarantine new koi.

koi fish pond with plants in the background

SPRING PREPARATION FOR KOI POND

After a cold winter, preparing your koi pond for spring is an important step to ensure the health and well-being of your koi fish. Here are some tips to help you get started:

HOW TO TELL IF YOUR KOI ARE MALE OR FEMALE?

Determining the gender of koi can be difficult, especially in younger fish. However, there are a few physical characteristics you can look for to help identify male and female koi:

HOW TO TREAT KOI ULCERS

Koi ulcers can be caused by a variety of factors, including bacterial infections, parasites, or physical injury. If you notice an ulcer on your koi, it's important to treat it promptly to prevent the infection from spreading and causing further damage. Here are the steps to treat koi ulcers:

SHOULD YOU FEED KOI DURING WINTER

Winter can be a challenging time for koi keepers, as the colder water temperatures can slow down the metabolism of the fish, making it more difficult for them to digest their food. To ensure that your koi remain healthy and active during the winter months, it is important to follow a few key guidelines when it comes to feeding.

Kohaku

Sanke

SHOWA

Chagoi

Hi Utsuri