Cookies seem to be disabled in your browser, therefore this website will NOT work properly! Please, consider enabling Cookies in order to maximise your user experience while browsing.
Recent discussions at Aqua-Fish+
  1. PondSealer at Maintainging a garden fish pond tasks on
  2. TheFishWorks at A guide on growing aquarium plants with FAQ, forum and species on …display more of the recent discussions
  3. Salviashaman at A guide on caring for Congo tetra (Phenacogrammus interruptus) on
  4. Salviashaman at A guide on setting a South American blackwater stream biotope aquarium on
  5. Figureguy at Chemistry of Aquarium Water with FAQ on
  6. Jackson20 at A guide on feeding aquarium fish frozen foods on
  7. Senator Wisdom at Bloodfin tetra (Aphyocharax alburnus) on
  8. CayceR at A page and forum devoted to keeping Blood parrot cichlids on
  9. Ness at A guide on raising African Dwarf Frogs with pictures and forum on
  10. Terry Mitchell at A guide on breeding, feeding and caring for L333 Pleco on
Koi carp - Cyprinus carpio carpio

Koi carp - Cyprinus carpio carpio

Scientific name: Cyprinus carpio carpio

Common name: Koi carp

Family: Cyprinidae

Usual size in fish tanks: 60 - 100 cm (23.62 - 39.37 inch)


Recommended pH range for the species: 7 - 7.5

Recommended water hardness (dGH): 0 - 30°N (0 - 535.71ppm)

0°C 32°F30°C 86°F

Recommended temperature: 15 - 25 °C (59 - 77°F)

The way how these fish reproduce: Spawning

Where the species comes from: Europe

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Bottom levels

Koi carp often have the reputation for being very expensive and difficult to keep, some varieties can be expensive especially the show specimens but generally the more common varieties can be found for reasonable prices and if given the correct conditions are quite easy to keep healthy and they provide a great talking point to any garden pond.

Planning is key before you purchase any Koi Carp, some specimens can grow up to 3 feet (91.44 cm) in length so the size of your pond needs to be large enough so house the fish comfortable and allow them to grow to their full potential.

An easy way to work out the size of your pond and how many Koi you can keep in it is to allow at least 10 gallons (45.46 litre, 12.01 US gallon) of water volume for each fish in there, smaller ponds will only house a few Koi so bear this in mind and never overstock. They are also high waste producers as expected so make sure that the filtration system is adequate and rated large enough for the water volume in your pond.

Feeding your Koi Carp

Basically Koi Carp will eat anything, they are classed as omnivorous and will eat both meaty foods and vegetable based foods. The best way to satisfy their needs is to supply them with good quality pellets that are specially designed for Koi, you can also give them treats of chopped vegetables and fruit, over time the fish will know when it is feeding time and they should become tame enough to eat out of your hands with patience.

Selecting your Koi Carp

Always be fussy when purchasing the Koi Carp for your pond and never impulse buy, use a reliable supplier for your fish and watch them swimming around for a while, study the fish for any signs of infections or imperfections. Healthy specimens can live for over 20 years and will bring enjoyment to your life.

Besides original carps species, which live in lakes and rivers, there are many Koi’s colour varieties which can be found in the aquarium shops.

The most known types of koi are:

  • The Long Fin Koi
  • Butterfly Koi
  • Assorted Koi

Nowdays, the most of Koi’s are produced in Asia. However, it’s easy to breed this fish at your own garden/fish pond. Due to large adult size, it’s not recommended to keep Koi’s in ordinary tanks. Beginners use to buy this kind of carps because of their colours, fins and peaceful behaviour. As fish grow, small tanks are getting unusable.Since this fish can be found almost everywhere within the freshwater biotopes of Europe, Asia, Euro-Asia, they will survive freezing colds easily. If the temperature is lower than 5°C (41.00°F), you should consider moving fish into a bit warm water.

Koi’s will appreciate enough plants and driftwood pieces. Feed them with spinach, lettuce, tubifex worms, blood worms, small fish, daphnia, or brine shrimp. Feeding should be processed at least 3 times a day.


Thanks to Yves Rubin of for allowing us to use the pictures!

Koi fish, image 1 Koi fish, image 2

Want to buy a Koi?

Koi Fish - Quality Koi Company, Inc. is a Japanese-style Koi farm located in Salem County, NJ, with the goal of producing top-grade Koi from carefully selected, high-grade imported Japanese stocks.

Did you know?

Please, verify whether your login and password are valid. If you don't have an account here, register one free of charge, please. Click here to close this box.

You have been logged out successfully! This box will close automatically!

Something went wrong during processing your message, please try again!

Your message has been sent, thanks a lot!

Page has been saved, refresh it now, please!

The page has been created, you will now be redirected!

URL already exists!

Path to the photo is not unique!

Really delete this page from the database?

The page has been removed successfully, you will be redirected now!

The page couldn't be deleted!!

Unfortunately this page doesn't allow discussion. Please, find any other page that fits your area of interest as over 99% of our pages allow discussion. The reason why no discussion is allowed here is this page is too general. Thanks a lot for understanding! Click here to search, please!

Really delete this comment from the site?

Really delete this image from the site?

Really delete this image from the site?

Selected comment has been removed successfully!

Selected image has been removed successfully!

Either login or email address is required

Account has been recovered, please check your email for further instructions