Hi Utsuri - 32cm REF:13387
Hi Utsuri - 32cm REF:13387 £135.00
DOB: 2025 Sex: Male Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 33cm REF:13156
Hi Utsuri - 33cm REF:13156 £135.00 £195.00
DOB: 2024 Sex: Female Bloodline: Isa Please note: The head is slightly off-centre. This will not affect the health of the Koi. Priced to reflect this.    This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 33cm REF:29097
Hi Utsuri - 33cm REF:29097 £295.00
DOB: 2024 Sex: Male Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 34cm REF:19187
Hi Utsuri - 34cm REF:19187 £195.00
DOB: 2024 Sex: Female Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 36cm REF:29121
Hi Utsuri - 36cm REF:29121 £295.00
DOB: 2024 Sex: Female Bloodline: Isa     This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 36cm REF:29148
Hi Utsuri - 36cm REF:29148 £295.00
DOB: 2024 Sex: Female Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 38cm REF:19278
Hi Utsuri - 38cm REF:19278 £195.00
DOB: 2023 Sex: Female Bloodline: Isa     This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 38cm REF:29141
Hi Utsuri - 38cm REF:29141 £295.00
DOB: 2024 Sex: Male Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Hi Utsuri - 39cm REF:39103
Hi Utsuri - 39cm REF:39103 £395.00
DOB: 2024 Sex: Male Bloodline: Isa Certificated: Yes    This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
HI-700-25 Reagents for HI-700 Ammonia Pocket Checker
HI-700-25 Reagents for HI-700 Ammonia Pocket Checker £29.95
This 25 pack of reagents is for use with the HI-700 Ammonia Low Range Pocket Checker. The HI-700-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Ammonia Checker® HC. These reagents follow the Nessler Method in which the reaction between ammonia and reagents causes a yellow tint in the sample. By simply adding 4 drops from each bottle of HI-700-25 reagent set to the sample, the reaction will take place and the HI-700 will determine the concentration from the colour that is produced. The results will be displayed in ppm (mg/L) of ammonia-nitrogen (NH3-N). These reagents are designed to be used with samples that have an expected range of 0.00 to 3.00 ppm ammonia-nitrogen. To convert the reading to ppm of ammonia (NH3) multiply the result by 1.214. Tip for an accurate measurement It is important that the sample does not contain any debris. Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion. Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost. After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.
HI-707-25 Nitrite Low Range Checker (0-999 ppb) spare reagent 25 tests.
HI-707-25 Nitrite Low Range Checker (0-999 ppb) spare reagent 25 tests. £24.95
Reagent for HI -707 Nitrite Marine Low Range Pocket Checker This reagent is for use with the HI-707 nitrite low range pocket checker and provides enough for 25 tests. The HI-707-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrite Low Range Checker® HC. These reagents follow the Diazotization Method in which the reaction between nitrite and reagent causes a pink tint in the sample. By simply adding the packet of HI-707-25 reagent to the sample, the reaction will take place and the HI-707 will determine the concentration from the colour that is produced. The results will be displayed in ppb of nitrite. These reagents are designed to be used with samples that have an expected range of 0 to 600 ppb nitrite. Tip for an accurate measurement It is important that the sample does not contain any debris. Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion. Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost. After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.
HI-711-25 Reagents for HI-711 Total Chlorine Pocket Checker
HI-711-25 Reagents for HI-711 Total Chlorine Pocket Checker £15.95
This 25 pack of reagents is for use with the HI-711-25 Reagents for HI-711 Total Chlorine Pocket Checker The HI-711-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Total Chlorine Checker® HC - HI-711. These reagents follow the DPD Method in which the reaction between chlorine and reagent causes a pink tint in the sample. By simply adding the packet of HI-711-25 reagent to the sample, the reaction will take place and the HI-711 will determine the concentration from the colour that is produced. The results will be displayed in ppm (mg/L) of total chlorine. These reagents are designed to be used with samples that have an expected range of 0.00 to 3.50 ppm (mg/L) total chlorine.   Tip for an accurate measurement It is important that the sample does not contain any debris. Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion. Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost. After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.
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Jumbo Bloodline Chagoi & Karashigoi Mix
Jumbo Bloodline Chagoi & Karashigoi Mix from £65.00
DOB: 2025 Bloodline: Marudo Jumbo Variations: Chagoi, Karashigoi, Doitsu Chagoi, Doitsu Karashigoi You can request what mix of varieties you would like to receive.  For example, if you choose a quantity of "5" you can make a note at the checkout of what variety you would like ie '2 x Chagoi, 1 x Doitsu Chagoi, 2 x Karashigoi'. Just make a note at the checkout, or drop us an email after placing an order. Maximum request 4 of any variety in every 10.  We can not guarantee you get your exact selection (depending on availability), but our team will do their best to ensure you get the Koi you want.  A fantastic addition to a pond with spooky fish, many customers have seen a massive change in the behavior of their fish from the addition of one of our Karashigoi or Chagoi. Oh and did we mention, they grow like mad?! We have taken fish up to 55cm at 1 year old from the same bloodline!   Food (+£15): 1.5kg of Premium Growth 3mm
JUMBO Koi Fry (1.5
JUMBO Koi Fry (1.5"-2") from £70.00
SOLD OUT FOR 2025. NEW STOCK DUE JULY 2026 These JUMBO fry are the faster-growing fry, that have been selected due to their fast growth. They are up to TWICE the size of our normal fry, at the same age! This batch of Fry are a random selection from the following varieties:  You will get a random mix from the list above, and there is no guarantee you will get one of everything. If you want to order specific mixes, we recommend you buy our larger Small Koi Mixes, where this option is available.  Please note Fry orders MUST be shipped for arrival on Wednesday or Friday of August. Fish are scheduled to arrive between 7:00am and 2:00pm, and you MUST be in to sign for the fish (Koi delivery is £29.95). Collection must be made on either Friday 15th August or Saturday 16th August. Fry have been acclimatised from the mud ponds, however, we advise you salt the tank/pond where you put the fry to 0.75% to help them acclimatise to their new environment. Hold the salt at this level for 1 week, then slowly bring it down with your regular weekly water changes.  They need a suitable tank or pond away from larger fish, good filtration and water quality are essential.  Fry are delicate and will not cope with poor water parameters so please ensure you have adequate filtration systems to cope. Once you have received delivery or collected, it is your responsibility to provide a good quality environment big enough for these to grow on. Koi are measured from the tip of their nose to the end of the tail. Please note sizing of fry is approximate.  The demand for our Jumbo Koi Fry is sky-high, as a result each batch we release is expected to sell out the same day they go on sale. We experienced record demand in 2024, with one batch selling out in under 30 minutes! Over the course of the summer we tend to release 4 or 5 batches of Fry, so you'll get a few chance at securing some Fry. We always prewarn customers when each batch is due on sale, via social media or our mailing list.   Fry Food: Orders with 'YES' to food will come with 700g of Fry Food, this is the same food they are already eating on the farm. The food size will be appropriate to the Koi Fry you are buying. Are you crushing up your food to feed to your Koi fry? Do you know the impacts this will have? Feeding your fry crushed-up food (even “high protein” diets) can have a detrimental impact on the growth of your Koi fry. Most commonly used feeds on the market contain around 33-40% protein, however, this is inadequate for the needs of developing fry, regularly leading to bent spines, tails, curled out gill covers and incorrectly developed fins. Our fry food, which we use each year to raise around 500,000 fry, contains 56% protein. Not only does this specific fry food have a higher protein content, but it also has higher vitamin and mineral levels to aid the fry in bone development. To avoid any development issues, high-quality fry food is a must! We advise feeding this diet until the fish are at least 2” inches. Even after this stage, a high-quality diet of at least 40% protein is still required to ensure the best growth and development of your fish.  
Kanoko Showa - 26cm REF:70344
Kanoko Showa - 26cm REF:70344 £75.00
DOB: 2025 Sex: Female Bloodline: Isa   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Karashigoi - 18cm REF:70114
Karashigoi - 18cm REF:70114 £75.00
DOB: 2024 Sex: Male Bloodline: Marudo Jumbo   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Karashigoi - 20cm REF:70257
Karashigoi - 20cm REF:70257 £75.00
DOB: 2025 Sex: Male Bloodline: Marudo Jumbo   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Karashigoi - 21cm REF:70250
Karashigoi - 21cm REF:70250 £75.00
DOB: 2025 Sex:  Bloodline: Marudo Jumbo   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Karashigoi - 22cm REF:70231
Karashigoi - 22cm REF:70231 £75.00
DOB: 2025 Sex: Male Bloodline: Marudo Jumbo   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.

A Range Of Varieties

We breed a number of varieties of Koi each year and use our many years of experience to select the very best.

Hundreds Of Awards

We breed the finest Koi (Nishikigoi) in the UK and have won hundreds of awards for their owners over the years.

Online Or In-Person

You can buy the Koi we breed direct from us by visiting our farm in Oxfordshire, or you can order online.
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