Koi Product Categories

At Mujimono Koi, we understand the importance of offering premium Koi carp products at competitive prices without compromising on service quality. Our commitment to customer satisfaction is very important to us.

I HAVE Answers

Frequent Questions

Unfortunately, not. Because we are breeding koi we do not unnecessarily net our koi, and this maximises their growth. You can purchase our koi from koi shows throughout the UK.

Yes they will. Mujimono Koi are no different genetically from those that are imported from Japan. The parent koi that we breed from are 100% Japanese and the bloodlines are pure.

With low stocking levels, good quality food and purified water, koi can live upwards of 20 years, maybe even 30 years.

No, we do not ship our Koi at present. If you want to purchase Mujimono koi fish you’ll be able to do so at a live show and the koi are personally and safely shipped there by us.

Orders placed before 2pm are shipped the same day. Orders under 2kg are shipped via Royal Mail, and orders over 2kg will be dispatched via DPD (next working day).

We recommend 1.5 meters or 5 feet as an ideal depth.

Expensive koi food often signifies better ingredients. Protein levels of 36-37% are generally ideal, but higher levels for young koi (tosai) can be beneficial. However, excessive protein may lead to unwanted effects in the water and the fish. Consider the type and quantity of protein when evaluating costs.

The best practice for water testing is a minimum of once per week and continuously thereafter if you spot any issues or when treating the pond.

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Best Selling Products

  • Colombo Alparex (100ml

    Colombo Alparex (100ml, 250ml, 500ml)

    £18.99£44.99

    Colombo Alparex combats fish parasites and fungus effectively to prevent Ichtyobodo, Trichodina Whitespot. Easy dosage with visible results in just days.

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  • Kusuri Fluke M (65g, 130g)

    £23.95£42.95

    Kusuri Fluke M is a safe and effective flubendazole pond treatment for fish gill and body flukes, and ideal for one-off use or follow-up after 7 days.

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  • Colombo Morenicol Lernex Pro (1ltr)

    Colombo Morenicol Lernex Pro (1ltr)

    £57.99

    Colombo Lernex Pro is an advanced, highly-effective pond treatment for resistant skin flukes (Gyrodactylus) and gill flukes (Dactylogyrus).

  • Sale!

    Lincolnshire Fish Health Envirex

    £22.95£74.95

    Lincolnshire Fish Health Envirex

    Is a biological pond cleaner naturally enhances pond hygiene, reduces maintenance, inhibits algae growth, and prevents blanket weed. Maintaining clean ponds makes our hobby more enjoyable, as koi thrive in an optimal environment.

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  • Sale! Pond Detox Formula (300g

    Lincolnshire Fish Health Pond Detox Formula

    £14.95£59.90

    Lincolnshire Fish Health Pond Detox Formula neutralises many forms of pollution in your pond, including airborne pollution, tap water contaminants, heavy metals, and ammonia. Pond Detox Formula is versatile, easy to use and is very effective at addressing issues caused by horticultural products, plant toxins, acid rain, nitrites, and chemical overdoses. Regardless of the source, our formula ensures your pond maintains optimal conditions for fish health. Lincolnshire Fish Health Pond Detox Formula is non-chemical and completely safe.

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  • FOK Bio Factor Clay

    £34.95

    Bio Factor VL enhances Koi health by stimulating cell growth, strengthening immunity, and promoting optimal body conformation.

  • Bactoplus Fresh PSB Bacteria 2000ml

    £24.49

    Bactoplus Fresh PSB Bacteria 2000ml enhances water quality and clarity by eliminating ammonia and other impurities. It does not consume oxygen, making it safe for use even at higher dosage levels.

    A 2000ml bottle can treat up to five ponds, each containing 40,000 litres of water, with beneficial bacteria.

    Use Bactoplus Fresh PSB when water temperatures are above 12°C for optimal results.

  • Aqua Source Balance Vitalize (1ltr, 2.5ltr)

    £24.95£44.95

    Aqua Balance VITALIZE enhances fish immune systems, aids recovery, and neutralizes potassium permanganate for optimal pond health.

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  • Aqua Source Blanketweed Resolve (250g

    Aqua Source Blanketweed Resolve

    £8.95£38.95

    Eradicate stubborn blanketweed with the very popular Aqua Source Blanket Weed Resolve’s fast-acting, phosphate-reducing formula, which is harmless to fish and plants.

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  • Evolution Aqua Stop BlanketWeed (400g, 1kg, 2.5kg, 4kg)

    £11.99£45.90

    Evolution Aqua STOP Blanketweed eliminates and prevents the return of blanket weed, offering a natural and safe solution for clear, healthy ponds.

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  • Bactoplus Ohmizu Clay (2.5ltr)

    Bactoplus Ohmizu Clay (2.5ltr)

    £27.95

    Bacto Plus Ohmizu Clay enhances Koi pond water by adding valuable minerals, removing contaminants, and promoting crystal clear, healthy conditions.

  • Antec Virkon Aquatic Tablets (50 x 5g)

    Antec Virkon Aquatic Tablets (50 x 5g)

    £24.95

    Antec Virkon Aquatic Tablets (50 x 5g), a powerful solution for sterilizing koi ponds, offering antibacterial, antiviral, and a antifungal treatment.

Showing 1–24 of 320 results

  • Air Diffuser Tube Bar (10m)

    Air Diffuser Tube Bar (1000mm)

    £65.94

    Upgrade your koi pond aeration system with professional-quality rubber bar hose, featuring adjustable size and stainless steel rods for efficient installation.

  • Aqua Pond Weighted / Sinking Air Line 4mm

    £3.25

    Aqua Pond Weighted / Sinking Air Line Our airline, available in 4mm or 8mm internal bore, effortlessly sinks to the bottom of your pond. This design eliminates the need for additional weights, ensuring a cleaner and more natural look without unsightly floating lines.

  • Aqua Source Replacement Quartz Sleeves 40w / 80w

    £47.95

    Aqua Source Amalgam 40w & 80w Replacement Quartz Sleeves.

    . Ensure optimal performance and longevity with our high-quality quartz sleeves designed specifically for your UV units.

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  • Aquaforte DM-VARIO S Pond Pump

    £269.95£519.95

    The DM-Vario S pumps are suited for outdoor use and are suited for wet & dry applications. With the external controller you can adjust the flow (and thus the energy consumption) from 30% to 100%. The controller can also start/stop the pump (pause button). Provided with synchronous motor and wearproof ceramic shaft for long time use. Automatic power-off protection when running dry. When the impeller is blocked it will go into a “lock” position in which the pump does not use power and waits until the blockage is gone. This will prevent a motor burn out.

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  • Sale!

    AquaForte DM-Vario S WiFi Pond Pumps

    £267.36£736.78

    Discover AquaForte DM-Vario S WiFi Pond Pumps, the latest in pump technology. Control flow rates, on/off status, and scheduling with ease using the free iOS or Android app. These pumps feature their own Wi-Fi signal for seamless operation without a router. Upgrade your pond system with AquaForte’s innovative pumps today!

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  • AquaForte GardenSniper Heron/Animal Deterrent

    £57.33

    AquaForte GardenSniper Heron/Animal Deterrent, do you suffer from unwanted animals in your pond or garden? Then AquaForte offers the solution with its range of animal scares.

  • Aquaforte Pond Vacuum (Wet & Dry)

    £157.49

    The AQUAFORTE POND VACUUM (WET & DRY) 4-in-1 is a versatile solution for pond and pool cleaning, serving as both a wet and dry vacuum cleaner.

  • Sale!

    Charles Austin Air Pump ET100

    Original price was: £144.95.Current price is: £134.99.

    The Charles Austen Air Pump ET100 is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET120

    Original price was: £159.95.Current price is: £149.95.

    The Charles Austen Air Pump ET120 is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET150

    Original price was: £340.95.Current price is: £329.95.

    The Charles Austen Air Pump ET150 is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET200

    Original price was: £395.00.Current price is: £379.95.

    The Charles Austen Air Pump ET150 is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET30

    Original price was: £77.00.Current price is: £67.00.

    The Charles Austen Air Pump ET Series is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET40

    Original price was: £89.99.Current price is: £79.99.

    The Charles Austen Air Pump ET Series is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET60

    Original price was: £105.95.Current price is: £99.95.

    The Charles Austen Air Pump ET Series is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Charles Austin Air Pump ET80

    Original price was: £139.95.Current price is: £128.95.

    The Charles Austen Air Pump ET Series is designed to ensure efficient water movement in wastewater applications, boosting oxygen levels to support the decomposition process by aerobic bacteria. In medical settings, the ET series delivers high airflow at low pressure, making it highly versatile.

  • Sale!

    Control Box Complete For Filtreau Drum Filter

    Original price was: £240.79.Current price is: £219.99.

    Filtreau Drum Filter Control Box. Crafted as a genuine replacement, this control panel boasts 2 x 2-pin Euro outlets designed specifically for cleaning purposes, accommodating both flushing pumps and motors. Additionally, it features 2 x 2-pin Euro outlets tailored for pond equipment, ensuring dry run protection for added safety and peace of mind.

  • EA Eazypod Automatic Pond Filter

    £769.95

    The Evolution Aqua EazyPod Automatic is a self-cleaning pond filter, mechanical and biological filter system for garden ponds up to 10,000 litres.

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  • Evolution Aqua Airtech 130 Litre Air Pump

    £399.95

    Evolution Aqua Airtech 130 Litre Air Pump is a durable & hardy pond air pump that breathes life into your pond, avoiding stagnant patches, keep life healthy.

  • Evolution Aqua Airtech 150 Litre Air Pump

    £459.95

    Evolution Aqua Airtech 150 Litre Air Pump is a durable & hardy pond air pump that breathes life into your pond, avoiding stagnant patches, keep life healthy.

  • Evolution Aqua Airtech 70 Air pump (Complete Air pump Kit)

    £174.95

    The Evolution Aqua Airtech 70 Air Pump kit comes complete with an Airtech 70 Air Pump, 4 way manifold, 10m airline and 2 air stones

  • Evolution Aqua Airtech 75 Litre Air Pump

    £199.95

    Evolution Aqua Airtech 75 Litre Air Pump is a durable & hardy pond air pump that breathes life into your pond, avoiding stagnant patches, keep life healthy.

  • Evolution Aqua Airtech 95 Air Pump

    £295.95

    Evolution Aqua Airtech 95 Litre Air Pump is a durable & hardy pond air pump that breathes life into your pond, avoiding stagnant patches, keep life healthy.

  • Evolution Aqua Airtech Air Pump Diaphragm Kits

    £54.95£94.95

    Genuine Evolution Aqua Airtech Air Pump Diaphragm Kits, easy to fit renews performance fraction of the cost of a new pump.

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  • Sale!

    Evolution Aqua Cetus Sieve Filter

    Original price was: £795.00.Current price is: £745.00.

    Cetus sieve

    The Cetus sieve is a bow screen pre-filter, made using the latest rotational moulding technology. With all of its benefits and build quality, it is undoubtedly the best of its kind on the market today, regarding quality and performance! It is designed to efficiently and effectively remove large amounts of mechanical waste from a pond. It can be set-up gravity or pump fed and has many benefits over the original bow screen technology.