estanque koi en primavera

5 tips for your koi in spring

Here in Spain we have had a late winter 2018, so that in many parts of the country water temperatures are still low. 

Take advantage of this situation and prepare your pond, so that you have healthy koi in spring. 

Bacteria, alga and parasites ARE ALREADY THERE. 

While the immune system of your koi is still sleeping (or just waking up).

In order to avoid the catastrophe in the next weeks – I mean green water and sick koi – take into consideration the following aspects: 

1. Food  

a) When temperatures raise, the activity of koi increases, they will ask for more food. Please start bit by bit. If your water temperature was below 8º your koi have been fasting. Then it is essential to start feeding just once per day during the first week (at the warmest moment of the day). The following week you can give food twice a day (midday and afternoon). Then gradually augment up to 5 times per day in summer. 


b) Another important aspect is the type of food


koi en primavera

Koi Hacienda: feeding koi in spring bit by bit

2. UV lamp bulbs

Check the UV lamp bulbs. The bulbs usually have a lifespan of about 7 months. However, throughout its life, the force decreases. That means: Although perhaps now only 5 months have elapsed, the remaining strength is not enough to face the problem of algae that begins now.

Most of the problems for koi in spring are due to the fact that the good bacteria in the filter are not yet developed and because they are not enough. Why? Because bacteria feed on ammonia. Where does ammonia come from?

  • 75% from gills
  • 25% from faeces

If in winter, the koi move little and eat little, there is hardly any ammonia and therefore the good bacteria in the filter hardly have to eat and they diminish.

3. Bacteria

Increase the amount of good bacteria in the filter by adding products with dehydrated bacteria (e.g. Bactogen)

4. Strengthen the koi

Increase the self-defense of the koi. So your koi in spring can face climate changes better and be prepared for possible diseases. We recommend Malamix17 which also helps bacteria in the filter.


5. Algae

The increase in temperature and more light cause the algae to reproduce rapidly. Our best-selling product is Biobooster: Effective against algae and harmless to koi.


I hope that these simple – but very efficient – tips will be useful for you to face well the beginning of the season.

trucos para primavera koi


Koi Hacienda pre-filtro

Do I need a pre-filter for my koi pond ?

For this question there is no general response. We have to consider several aspects of who the question posed to us and we must explain what a pre-filter is.

A pre-filter is a filter that is installed in front of the main filter. The purpose of the pre-filter is to remove dirt BEFORE it reaches the main filter.

It is very useful if you have a difficult main filter (access is difficult) or laborious (remove 80 brushes of 70cm each, which is a lot of work) to clean. Then it is a huge advantage to have a pre-filter installed and thus reduce the cleaning of the main filter to (for example) only once a week.

Another appropriate situation to install a pre-filter: When one has started “little by little” with the pond and the koi, it will probably come to the situation when the existing filtration can not cope with so many koi / big koi. It would seem likely to adapt the complete pond, but often there is neither time nor money to do it. In this situation the incorporation of a pre-filter can save the situation, because it removes a lot of dirt before it reaches the main filter and thus decongests it.

pre-filtro Koi Hacienda

Koi Hacienda: pre-filter MultiCyclone 

A third reason to use a pre-filter is the filter bacteria in the main biological filter. These bacteria are sensitive to cleanings. Obviously it should only be cleaned with untreated water (chlorine would kill them right away), but they are still fragile and with a strong water jet quickly thousands of good bacteria are eliminated. If we use a pre-filter, we will reduce the amount of cleaning of the main filter and let the bacteria live quietly.

A pre-filter is then advisable

  • if you notice that the filter can not cope (either because the good bacteria are eliminated or because too much dirt enters). This “not enough supply” is expressed through turbid water, fish scratching, high level of ammonia etc.
  • if the cleaning of the main pond is difficult and / or laborious (which in the end will result in cleaning less often and / or removing the desire to have koi)

The pre-filter recommended by Koi Hacienda is called MultiCyclone of the famous Waterco brand. The manufacturer announces that it filters 80% of the dirt that would normally reach the main filter. We can not confirm the figure, but we have very good experiences using the MultiCyclone in our facilities (before arriving at the main filter which is a UB60 filter with beads).

MultiCyclone16 Waterco

Koi Hacienda: pre-filter MultiCyclone16

test agua

Colombo Test for water parameters of your koi pond

“How are the parameters of your water?”

That will always be the first reaction if someone contacts us when they have problems in their pond.

“Well …. the pH is at 7.8. “

This answer is acceptable for a person who starts in the world of koi.

But for those who have been around for a long time and those who APPARENTLY care about their koi, this answer is absolutely unacceptable.

In the article “Water Management for Koi Fishes” we stress out that BEFORE becoming a koi owner, you have to become a water manager.

Testing the water in your koi pond is fundamental to the health of your koi.

Here we present a complete set: Colombo Test.

Colombo Test

Koi Hacienda: Colombo Test

It is a complete set to test the water in your koi pond:

  • pH – acidity
  • KH – temporary hardness
  • GH – permanent hardness (or general)
  • NH3 – ammonia
  • NO2 – nitrites
  • NO3 – nitrates
  • PO4 – phosphate

Most of the multi-tests found in the market contain many of the parameters mentioned above, but not ALL. Colombo Test contains ALL the important tests to control the water in your pond.

Apart from being a complete set, it is an intelligent test: The most commonly used test fluids can be purchased separately.

Colombo Test, to test the water in your koi pond, is presented in a very professional way in a flat and small plastic suitcase. All of us who have worked with the individual tests, know that after a certain time, the cardboard packaging is breaking, especially when a drop falls onto it or by leaving it near the pond in a wet area.

Another disadvantage of traditional tests is that the cards to compare the results obtained may be lost. Especially if the packages no longer exist.

With the Colombo Test you have it all together in a practical suitcase. You do not have to worry about where the test or the color card is, because everything is always together.

estanque koi agua

Koi Hacienda: Colombo Test in a handy case

The most frequent parameters NH3, NO2 (ammonia and nitrites) and pH are very easy to measure: 5 ml (for ammonia 10 ml) of pond water + 5 drops of the corresponding liquid.

For the KH and GH (the two kind of hardness) the procedure is different: The drops must be added and counted until the water changes color.

And for nitrates (NO3) and phosphate (PO4), in addition to the drops, you have to add the corresponding powder.

Maybe it sounds a bit confusing, but it’s very easy, as the following video shows.

Testing the water in your koi pond is no longer a nightmare. With Colombo Test you always have everything at hand.

Now you no longer have an excuse to not have all the parameters at hand when we ask you 😉

testar agua estanque koi

Koi Hacienda: Colombo Test – handy test case


In Koi Hacienda we speak …

The reason I write this article is because in the last two months we have been contacted by  clients who did not speak very well Spanish. They were really happy to be able to speak their language and we could not have helped them so directly and easily if we did not speak their language.

As Thierry and I “grew up” with these languages, we are not aware of this knowledge. For us it is absolutely normal to change continuously between one language and the other.

For this reason we had never pointed out on our website that we can attend customers in several languages.

But as it is crucial for some people, her some more information about us: 

Thierry belga

Thierry was born in Belgium. One of the countries forming the Benelux (Belgium + Netherlands + Luxembourg) in which there are THREE official languages: French, Dutch and German. Although he grew up in a Dutch-speaking region, his parents chose the early years of his education French. Later in school he had to learn Dutch. Although he learned German at school, he never liked this language. And what we do not like, we prefer not to do it. Another language in the school was English, which was much more interesting for him since he saw the international utility of this language.

Upon arriving in Spain, Thierry learned Spanish rather in a practical way: day-to-day business instead of going to an academy for foreigners.

In short: Thierry speaks French, Dutch, English and Spanish.


Eli was born in Bolivia and her native language is Spanish. Although she has been in Spain for many years, she still dominates the native language Quechua. But her Latin American vocabulary has adapted to the Andalusian 😉

In short: Eli speaks Spanish and Quechua.

bandera de Alemania

I, Thekla, I was born in Germany. I always say that the only advantage of having this nationality is that I do not have to learn this language. And I totally agree with what the Spaniards tell me: German is a train of consonants 😉

At age 14 I came to Spain to attend secondary school, and thus I learned Spanish.

Instead of going to university, I went back to Germany and started training in hospitality and tourism. I think that was the birth of my European nationality since I met many people from other countries and other cultures that aroused my passion to explore and travel.

For me, French is the most beautiful language in the world. My French friends laugh when I tell them the reason: When someone says “Bonjour” it’s like giving you a kiss. Nothing better than learning a language in the country itself, so I did several internships in France and even studied during my university training a quarter in the Haute École de Commerce in Grenoble.

English was always considered as a “must” but I never have had a real connection with this language. Over time I have met people who speak a clean and sophisticated English which made me appreciate this language, too.

In short: Thekla speaks German, Spanish, French and English.

As Thierry and I “grew up” with these languages, we are not aware of this knowledge. For us it is absolutely normal to change continuously between one language and the other.

For this reason we had never emphasized our website that we can serve customers in several languages.

So … 

En Koi Hacienda hablamos español

In Koi Hacienda we speak English

En Koi Hacienda nous parlons français

In Koi Hacienda sprechen wir deutsch

In Koi Hacienda spreken wij Nederlands.

diferentes tipos de estanques

Top 5 mistakes when building a koi pond

Top 5 mistakes when building a koi pond

“If I had known before …” is a phrase which we hear very often in Koi Hacienda when our clients consult us because of problems they have in their pond.

With the article Top 5 mistakes when building a koi pond we want to give the possibility of learning from the mistakes of others.

1. Decorative pond or koi pond?

There are decorative garden ponds and there are koi ponds.

Two absolute different issues. 

diferentes tipos de estanques

Decorative garden pond and koi pond (more purist => easier to keep water clear)

Of course you can have koi in a decorative pond, but – as a rule – at some point begin the problems: algae, muddy water, sick koi …

If you want a koi pond, you should decide to build a real koi pond. With healthy koi, crystal clear water and minimal maintenance to have time to enjoy your koi.

2. Too small

Let’s see: people who have little space available and want to have koi, obviously they have no other choice than building a small pond. But those who have space in their garden and start with a 2m x 2m and 1m deep, would commit a big mistake.

The general rule for healthy koi that can optimally develop would be: 1000 liters (= 1m3) per koi.

This means – according to the example above – that the owner of that pond could only have 4 koi (2m x 2m x 1m = 4m3 = 4000 liters => 4 koi)

Of course at the beginning you can introduce many more, but nature is wise: Koi grow less if there is little space (or overpopulation).

3. Depth

“If I do it deeper, I will not see my koi.”

How many times have we heard that!

Honestly: It’s really silly. If you have a koi pond in good condition, your will see your koi perfectly. 

I think I have already posted enough videos of the koi in Koi Hacienda (if you have not seen them, I leave you some links below) in which you can see the koi perfectly. The main pool at Koi Hacienda has a depth from 2m – 2.70m. And no problem so see them. 

Depth is required to:

A) development of the “torpedo” form of the koi

If the koi have no depth and grow, they will be large, but elongated koi. Not with the typical form of “torpedo”

B) temperature variations

In summer, at the bottom it is cooler. In winter, at the bottom the temperature is more temperate. Koi can look for the temperature they need. With a shallow ponds they do not have this ability to balance their body temperature.

C) algae

Algae fundamentally need two things to grow: food and sunlight. The food is usually food remains of koi food and feces that are at the bottom of the pond. If the bottom of the pond is shallow, the two requirements are given. If the bottom of the pond is deep, less sunlight comes in and more difficult for algae. And if the bottom is clean, none of the requirements are met and algae can not survive in this pond.


agua verde koi

Very green pond due to algae

4. Little by little

Starting with “little by little” is another of the Top 5 mistakes when building a koi pond. 

I fully understand that building a good pond can be an important investment depending on the budget of each home. If this is the case, I advise this person to wait and save instead of starting right now with solutions “little by little” for a simple reason: In the end, you always pay more.

Beginning with the points mentioned above (small and shallow), combined with inexpensive machinery, can provoke stop wanting to have koi because one will spend hours cleaning inappropriate filtration systems, will be frustrated because they do not see their koi due to dirty water and will be discouraged because the koi get sick (or at worst die) because of poor water quality.

Today with internet we can afford a comparison of the same product within seconds. And the “click” to buy and pay with card is very easy. But if you buy your filtration system 75 € cheaper in France who will solve the problems later? Will you call (if you find the phone number somewhere) to France when it breaks and you need a spare part?

Another aspect of “little by little” is the expenses that come later. Example: I buy an economical pump for my filter. But what about the bills of electricity that come to me monthly? Our BlueEco pumps are more expensive, but the manufacturer announces up to 50% of energy savings which can make it profitable within the first year.

bomba filtro

Blue-Eco pump – low energy consumption granted

5. Oxygen

Beginners think that koi only need water to live.

Well, NO.

Here we go with the fifth of the Top 5 mistakes when building a koi pond. 

They are living beings and like all living beings they need oxygen. This oxygen is – in different concentrations – in the water.

The warmer the water, the less oxygen there is.

In most cases, in summer koi need additional oxygen in order to survive. And a cascade of a decorative garden pond is not enough.

If there is no bottom drain with aeration, the oxygen can only be provided later through an external air pump and tubes with oxygen stones introduced into the water. It is not very aesthetic, but at least they serve.


I hope the Top 5 mistakes when building a koi pond will be a useful article for you. And you know: This is a blog, a place to share and exchange opinions. If you want to tell us your experience when building your pond, your comments are welcome.


To discover Koi Hacienda: Virtual Tour 

Main pond in Koi Hacienda: The art to catch a koi

Closer look to the main pond in Koi Hacienda: Giving food

Like that we start the day in Koi Hacienda: Good morning Koi 

koi hacienda koi sanos

Start the season with healthy koi

Healthy koi – the key factor for every koi lover. 

Because having a koi with stunning pattern but sick … ?


We are already in March and with this – in great part of the Spanish territory – the temperatures are beginning to rise.

With this rise in temperatures, our koi wake up slowly from their “hibernation”.

From 10ºC of water temperature on we can start feeding again. Better to start with very little quantity and gradually increase the frequency (from 1x per day to 3x per day).

Rising temperatures not only wake up our koi, but also bacteria and parasites.

It is not difficult to understand that these organisms develop much faster than our beloved fish. So their “attack” begins before our koi are ready to face it.

If we want to have healthy koi, we have to act NOW.

Koi Hacienda wants to help you have healthy koi from the first moment. That’s why we have developed a super offer:


Koi Hacienda already for long time has been in close contact with Koi veterinarian Maarten Lammens. During one of our visits to the “Holland Koi Show” we talked to him and he introduced us to his product Malamix17. A liquid based on 17 natural ingredients (see full sheet here) that increases the koi’s own defenses.

koi sistema imunitario prevencion

healthy koi with Malamix17

We tried it and were amazed.

When we receive the new koi from Japan or in any other stressful situation, Malamix17 does wonders. And that within very little time (usually results from 2 days).

Maarten continued researching and created a complement product: the Malamix feed (see complete sheet here).

While Malamix17 is poured into the water of the pond and absorbed through the gills of the koi, the feed follows the principle of “healthy yogurt”: Feeling good, starts from the inside “ ?


alimentación koi

healthy koi with Malamix feed

A stitch in time, saves nine. 

Take advantage of our super offer NOW.

Valid until 20th March or end of stock.

Healthy koi NOW




koi invierno

How to prepare my koi pond for winter

Better late than never.

I honestly have to admit that I had not thought to write anything about winter.

In Koi Hacienda the minimum temperature – of the water – is 15 degrees, due to being located near the Mediterranean coast and having semi-covered facilities (see virtual tour to understand better).


alimentacion koi

Big pond in Koi Hacienda

But telephone calls, emails and WhatsApp – really startling – of some customers have made me see that the winter in other areas of Spain is a very delicate period for the koi:

  • How to prepare my koi pond for winter?
  • Should I break the ice?
  • My koi lying on the bottom of the pond
  • Can I introduce new koi if my water is 2 degrees?
  • Should I give another type of feed in winter?

These and many more questions have come to me the last few weeks and are answered in this article “how to prepare my koi pond for winter”.

First of all I would like to make one thing very clear: Koi are cold-blooded fish. What is a cold-blooded animal? It is an animal whose own organism does not produce a body temperature. Therefore the temperature of the body is practically the same as its environment (in the case of the fish with 0.5º of difference).

A koi can survive for two months at 2 ° C if it has enough oxygen.

At these temperatures the metabolism of the koi is working very low. Any stress (removing the koi, changing the site, raising the water temperature by more than 5 ° in a day, etc.) can lead to shock, heart attack, even death.

How to prepare my koi pond for winter? 

Here are 8 aspects to take into consideration: 

1. Health

So that the koi can pass the winter without stress, it is important that they enter healthy in the cold season. If the koi are already “groggy”, it will be very difficult for them to endure a hard winter.

How to make koi well prepared? Especially the parameters of the water have to be correct.

If that is controlled, we can help to increase the koi’s own defenses with a Malamix cure. It is an absolutely natural product with ingredients such as aloe vera, marigold, ginger etc. Developed by veterinarian Maarten Lammens specialist in koi (see product sheet Malamix17). At Koi Hacienda we have many fantastic experiences with this product and highly recommend it.



2. Feed

If temperatures drop, we must adjust the type of feed.

While we, the humans, like the strong food in winter and light in summer, for the koi is just the opposite: Very nutritious in summer because it is their time of much activity and pre-digested in winter because their organism slows down until hibernation.

As a general rule you can say:

  • More than 20 ° water temperature: special feed for the development of colors (eg Ichi Excellent)
  • Between 15º and 20º water temperature: summer feed (eg Ichi Summer)
  • Below 15 ° water temperature: winter feed (eg Ichi Winter)
  • Below 10º water temperature: DO NOT FEED

Those who want to strengthen the own koi defenses, can mix the feed of each period with the Malamix feed. So we are doing here in Koi Hacienda and the truth is, it gives us very good results.

alimentacion koi

If temperatures drop, adjust type of feed


3. Depth

In most articles I indicate the importance of pond construction. I am aware that I repeat myself, but this is the basis of the well-being of the koi. Same as building a house: if there is botch in the basement, on the 5th floor we will encounter serious problems.

We insist on a wise construction of the new habitat for your koi and above all a dignified depth: minimum 1,50m. If it can be more, better (in Koi Hacienda the big pond is in the deepest part 2.70m). Depth is not only required so that koi can develop their torpedo body shape, but also because of temperature: in summer, down there is less heat. In winter, down there it is less cold.

Depending on the area, the soil, the insolation etc. as a rule it can be said that at 1.50m from the surface, there is still at least 2ºC.


4. Oxygen

Low temperatures are one aspect, but frost on the pond surface is another aspect. While koi can withstand temperatures up to 2 ° C (should not last longer than 2 months), it is absolutely essential that they have oxygen.

Oxygen is a complicated phenomenon elevated to two:

A) the warmer the water, the less oxygen itself carries

B) the warmer the water, the more active the koi, the more oxygen they need

In winter, the situation is obviously reversed: cold water contains more oxygen and koi need less because they are less active. They need less oxygen, but they need oxygen.


4.1. Oxygen through a waterfall

Let’s not fool ourselves: A waterfall is more a decorative object than an essential part of the installation of a koi pond. In summer usually it does not bring enough oxygen and in winter it scares the koi if it is not turned on continuously.

koi en invierno

Waterfall impeding freezing the pond


4.2. Oxygen through an external pump

An installed air pump that pumps oxygen into the pond is the most sensible option since this same pump can also be used in summer when the koi need more oxygen. Depending on the depth of the pond, a more or less powerful pump is required. It is important to take into account the electric consumption of that pump since it will work many hours. Due to this fact (constant operation) it is important to choose a silent pump. We in Koi Hacienda use with full satisfaction models of the Alita brand.


4.3. Obstacle

To prevent the entire surface of the koi pond from freezing completely, special objects have been developed as you can see in the picture. It has to be a floating and insulating object, so that the water does not freeze inside the obstacle.

estanque koi invierno

How to prepare my koi pond for winter ? (fish hole of


5. Never

I write it as a separate point, although it should be included in the previous topic. But as it is of vital importance, I give it its own title:

Never break the ice in the pond.

If during the summer, a child throws a stone at the pond, it is nothing serious (although undesirable). But if in winter, when the koi have slowed their metabolism so much, every abrupt action can cause so much stress that the koi goes into shock and dies. I’m not exaggerating at all. The most dangerous: this shock may come to light days later and then many people do not associate it with what happened.

In order to open the surface, take some boiling hot water and let it run onto the surface, melting it until you have a hole. Use then an obstacle, so that the surface can’t freeze completely again. 


6. Heating up

There are many koi lovers who are warming up their ponds in winter. Apart from being a great investment in machines, it also represents a great expense of electricity. This “solution” obviously means less stress for the koi, but on the other hand it also entails disadvantages. As previously stated, the koi is able to live in water up to 2°C (for a limited time). If nature predicts so, why does humans have to oppose? The cold season is essential because it gives the koi rest. This rest is essential for the growth of the koi (koi kept in constantly warm waters will not be larger than those experiencing hot and cold times). It is also said that constant high temperatures increase the risk of accumulation of eggs, tumors and other disorders of metabolism.

If a owner opts for this remedy, the best would be a temperature of 8°C for two months. As spring approaches, you should adjust the temperature gradually (maximum 4° per week) to 14°C.


7. Cover

Covering the pond can be another option to protect koi from low temperatures. Depending on the size of the pond, there are different ways. A special construction of wood, some canvases, branches, reeds … there are many ways and many materials. The important thing is that it can enter light (UV) and oxygen.


8. Quarantine pond

Like humans, there are koi who can withstand the cold and others less. For those fish that are more delicate, a solution to protect them from cold is to mount a quarantine pond in a protected area such as a garage, a workshop … This option requires space and a complete equipment for the quarantine pond and with filters, pumps etc. as the equipment for the main pond should continue to work there. 

Attention: Never leave the quarantine pond outside. If it does not have any protection, the whole water volume could freeze (including the koi).


How to prepare my koi pond for winter is an entry of the blog.

It is open to comments and suggestions.

Thanks for sharing.





Koi Hacienda Showa Dainichi

Dainichi koi … falling in love during a photo session

Dainichi koi …

On our site there is only one entry talking about Dainichi – better said their feed Saki Hikari.

I have still pending to write an extensive article about this breeder who is currently collecting all the awards of major championships.

But … last week we took out some of the Dainichi koi of this year. We were surprised by the size: the most extraordinary tosai measured between 31 and 34 cm. For a koi with a date of birth May / June 2015 it is a very good result.

I imagine you share with me this experience:  When you take a koi out of the pond to observe it closely, you discover details you had not noticed before.

Well … at least to me it happens. The longer I am looking to a koi, the more I fall in love.

I learned to explore the body … to see details … trying to capture them in the best way possible with the camera.

As a true photographer.

But as a photographer of models can tell them how to pose and what position to take, with koi is much more difficult ?

Although we have spotlights, there is nothing better for colors than taking photos with good weather and sun shine. On the other hand, there are also reflections ?

I left some photos with reflections, because they seemed pretty:


showa Dainichi

Koi Hacienda: Koi Dainichi

Koi Hacienda: Showa Dainichi

Koi Hacienda: Koi Dainichi

To place them on the web and for a prospective buyer to get the best idea of what to buy, it needs traditional photos.

Traditional pictures of koi, are taken from up to get the best impression of the shape of the koi’s body. Dainichi koi (often from small on) have the typical form of “torpedo” that should have a good koi. In the traditional photos, the koi must be looking down, show open fins and swim in a sky blue bowl.

We do not always succeed, but this photo has come out almost perfect:


Showa Dainichi foto tradicional

Koi Dainichi. traditional photo


Koi Hacienda initially only published these type of photos to offer our koi. Since we have our online shop, we take advantage of the technical possibilities adding more photos to the gallery to offer the customer the maximum of visual information.

Koi Hacienda: Koi Dainichi detalles

Koi Hacienda: details


I would like to “use” this article to emphasize two aspects:

1. Koi to approximately 3/4 years are not defined. Like a baby or small child … they still have to develop. They change. To where? To what? Which direction? Good question … they are living beings and it is impossible to predict the path they will take. And … the worst thing is … even if they take a certain path in our facilities, does not mean that in your pond they follow the same line. So … please … get rid of the idea of buying a tosai already completely finished.

Koi Hacienda: Koi Dainichi no terminados

Koi Hacienda: Dainichi koi “still not finished”

2. I fail to express the original colors of the “product” on the web. For technical reasons I am forced to reduce the size of photos which – unfortunately – means a loss of quality of the photos. So if the photos in the “product koi” seem like dull or the red is more an orange, often is this quality loss:

Koi Hacienda: Koi Dainichi comparativo de fotos

Koi Hacienda: Dainichi koi, comparative of photos (left web / right original photo)


Here are all our “models” ? of this photo session: 

Dainichi Showa ref. 15.16.023

Dainichi Kindai Showa ref. 15.16.024

Danichi Showa ref. 15.16.022

Danichi Kohaku ref. 15.16.025

Danichi Showa ref. 15.16.021





Ahorra comprando koi online

Summer Sale in Koi Hacienda

Summer Sale … all the famous brands are launching their Summer Sale 2016.

Koi Hacienda, too.

After having participated with great success during the commercial key dates such as “Black Friday” and “Cyber Monday”, Koi Hacienda offers you THE possibility to have real Japanese jewels swimming in your pond. At very reasonable prices.

40% discount on  1 year koi  inserting VERANO1 during your online shopping

30% discount on  2 year koi inserting VERANO2 during your online shopping

This offer is valid from 1st till 10th July 2016 and / or end of stock.



koi shusui

Shusui & Sushi

Shusui & Sushi

We all know that the Japanese name of our beautiful koi are quite difficult … but now on top we mix with another word: Shusui & Sushi.

Our intention is not to confuse you.

We would like you to learn the difference in a funny and perhaps a little bit provocative way (like that you will retain the learned lesson easier).

Ok – let’s see … what is the difference between Shusui & Sushi ?

Shusui is a variety of koi.

And Sushi is a special Japanese style to prepare raw fish.

Every year on June 18th the International Day of Sushi is celebrated.

And we in Koi Hacienda – we decided to celebrate the Day of Shusui.

The Shusui is the doitsu (= without scales) variant of an Asagi. This variety is a cross between a scaleless carp with Asagi. It was the first doitsu variety of koi.

To “judge” a Shusui you should take into consideration the following criteria:

  • the dorsal scales should be dark blue
  • the dorsal scales must start behind the head and come uninterruptedly to the tail (in front of the dorsal fin there are single scales, along the dorsal fin the scales are divided into two lines and behind the dorsal fin is again a line only)
  • the dorsal scales should be well ordered
  • the head should be light blue or white
  • the pectoral fins should have red
  • they must have red on the cheeks

Obviously koi that meet all these criteria are of high quality and have their price. Koi Hacienda try to adapt to the Spanish public that gradually is assessing the quality koi and is gradually understanding there is a price to pay for it.

Shusui & Sushi

Shusui where you con appreciate the organisation of the dorsal scales

In hard water and / or with a high pH, it is almost impossible to avoid black spots (both on skin and scales).

There are different types of Shusui:

  • Hi-Shusui: a Shusui whose red exceeds the sideline
  • Hana-Shusui: is a Hi-Shusui with dark blue scales in the two lateral lines
  • Ki-Shusui: instead of the red is the color yellow
  • Pearl-Shusui: with silvery scales

Take advantage of the offer on June 18th and purchase Shusui Koi Hacienda with 30% discount:

Shusui high quality (2 years)

Shusui standard quality (2 years)

and several 3 year Shusui