Tuesday, December 7, 2010

2011 AKCA Seminar Cancelled

The 2011 AKCA (Associated Koi Clubs of America) Seminar has been canceled because of the venue that was chosen made changes to the convention space without notifying the AKCA.  Over two years of planning went into the event, which was to be the 30th annual seminar that the American Koi fish keepers have put on.  The Indiana Koi and Water Garden club submitted a proposal to host the 2011 seminar back in 2008.  Since so much planning goes into the event, there wasn't enough time to change the location and the call was made to pull the plug.  AKCA Chair Bob Finnegan is confident that this won't happen again and that the organization will learn from this experience.

| Source |

Friday, October 29, 2010

Awesome Koi Fish Facepaint

This girl turns herself into a Yamabuki Ogon Koi fish with some facepaint!

Wednesday, October 27, 2010

5 Tips for Fall Koi Care

Fall is the best season for viewing Koi.  The lower water temps hinder algae growth and make the Koi swim slower, so they have a more graceful appearance.  Use these tips to keep them healthy and happy:

  1. Clean the leaves out of the pond.
  2. Feed your Koi wheat germ based Koi food, when the water is cold, it will be easier for your Koi to digest.
  3. Put a net over the pond, it will prevent leaves from getting into the pond an clogging up the system.
  4. Shut the waterfall off at night.  If you have a system where you can recirculate water right back into the pond, do so.  A waterfall will act at a chiller at night, prematurely cooling down your pond.
  5. If you have a winter tank, move you Koi in before they go into hibernation.  They may be easier to catch when they are slow, but moving them in that condition is not a good idea.

Japan Mud Pond Harvest 2010

Here's a of a Koi breeder grading his Koi that he grew over the summer in a mud pond somewhere around the Yamakoshi area in Niigata, Japan.

After harvesting the Koi, the breeder brought the Koi back to a greenhouse, where he grades each Koi individually in a Koi measuring tub. It looks like he is grading 3 year old Gosanke.

Wednesday, October 13, 2010

Mud Pond Harvest POV

Watch the video here

Here's what it is like to harvest a mud pond over in Niigata, Japan. You can see them loading tons of Gosanke into plastic bags, where they then will be place into a K truck to be transported to the Koi farm. What you don't see is the errant crayfish that ends up in the seine net. Not fun to grab when you are feeling around in the water. Personal experience.

October 2010 Richdon Koi Harvest

Here's some footage taken at Richdon Koi's 2010 pond harvest. The Koi were grown out during the summer months in a 100,000 gallon pond.

Usually large ponds see faster growth rates in Koi. Over crowding is a big issue and will hinder the growth rates of the Koi.

Modded Hot Tub Turned into Koi Pond

A hot tub was modified and turned into a Koi pond.  The key feature is an added biological filter, so the hot tub can support Koi fish.

Monday, October 11, 2010

ZNA NorCal Nishikigoi 2010 Koi Show

The ZNA NorCal Koi Club is hosting its 4th annual Koi show.  Events include product demonstrations, Koi art, an auction, judging commentary and a ton of entrant Koi to view.  There is no entrance fee, the show is free to the public.

Saturday, November 13th from 9:00 am to 5:00 pm
Sunday, November 14th from 10:00 am to 3:00 pm

Holiday Inn San Jose
1740 North First Street
San Jose, California 95112

For more information, visit

Saturday, October 9, 2010

Yagenji Sandan Gin Rin Kohaku

In this video from OrnaFish Japan, we see a Sansai Gin Rin Kohaku from the Yagenji Koi farm in Ojiya City, Niigata, Japan.

Sunday, October 3, 2010

Nature's Coast Koi & Watergarden Club 2010 Koi Show

The Nature's Coast Koi & Watergarden Club is hosting it 10th annual Koi show. People will be bringing their most beautiful Koi fish from all over Florida and the South Eastern United States to compete for the top prize.

Saturday October 9th: 9:00 AM to 4:00 PM
Sunday October 10th: 9:00 AM to 3:00 PM

375 NE 749 St
Old Town, FL 32693

Admission is free.  On Saturday, guests can follow the judges around the tanks and learn how they grade each Koi.

Saturday, October 2, 2010

2010 Shasta Koi & Water Garden Club Koi Auction

The Shasta Koi & Water Garden Club is holding another Koi auction.

When: 10:00 AM Saturday, October 16th
Where: 19540 Broadhurst Rd Cottonwood, CA 96022

Any attendant is welcome to bid on Koi, but only members can sell their Koi at the auction. For more information, visit

Cormorants May Be Spreading KHV

One of the most irritating predators of fish, including Koi, the Cormorant, could be the source of KHV outbreaks. This predator, along with other birds that eat fish can bring the disease to several ponds. The stool of the birds that eat infected fish may harbor the virus. Even feathers that have traces of the juices from the dead Koi fish may have the virus in them (the birds swim in the water with the dead fish). The UK based CEFAS is investigating the virus, though officials fear they may be unable to halt the virus' progress.

Koi herpes virus appeared in the late 1990's. It kills over 90% of the carp it infects. The rest need to be destroyed since they become carriers for the virus and are able to infect other carp populations if they are moved to another pond.

Source: Angling Times

Thursday, September 30, 2010

Hand Feeding Koi Fish at Changi Airport

In this video clip we have a bunch of Kohaku Koi fish eating out of a traveler's hand. Hope the Koi don't bite too hard!

Koi Eats a Cheerio


Koi Fish Highlight Day 130

Youtube user katinatreesee is on a mission to record every day for one year. That makes 365 days in total. On day 130 she visited a Koi pond at the Chuang Yen Monastery in Carmel, NY. Check out the video to see what she thought of it.

Monday, September 27, 2010

A giant Koi Pond

In this video clip, jumbo Koi fish swim around in a giant pond. The sun hits them just right and makes their color explode.

Friday, September 24, 2010

Californian has bear "taken care of"

A Californian Koi pond enthusiast had a bear problem. It found her pond and ate most of her Koi. She contacted the local DNR and they told her to remove them from the pond. The bear kept returning to her property, so DNR issued a depredation permit and a trapper came and caught the bear.

The controversy involves the way the bear was euthanized. A local resident who was going to a relative's house passed by a truck and a trailer noticed that a bear was in it. He heard a gunshot, and a little while later the truck and trailer passed him. When the local resident investigated the area that the truck was parked on, he discovered a bear carcass that was missing a paw and the head. He contacted the local authorities who discovered that it was the trapper that the DNR hired who quite literally executed and then mutilated the bear.

Source: Mountain News

What's next for Koi pond predators? Concrete shoes? Could Jimmy Hoffa be underneath a Koi pond somewhere?

Pic Unrelated:

American Black Bear
Source: U.S. Fish and Wildlife Service

Thursday, September 23, 2010

KHV Outbreak in Boise, Idaho Park Ponds

Several ponds in a park near the Boise Depot have an outbreak of KHV (Koi Herpes Virus.)  Authorities believe it happened when someone dumping their fish in the ponds.  Almost 100 Koi in the ponds have died already, the rest are to be mechanized to prevent the spread of the virus in the area.  Cleanup of the ponds is estimated to cost the city up to $10,000.00.  Read more about it here.

Monday, September 20, 2010

Auctioneer wants to make a killing selling three Koi

An auctioneer in the UK hopes to sell three Koi for $16,000.  The trio of Koi belonged to a Koi enthusiast from Surrey who left his fish to his children.  They are part of an estate sale.  With no prior experience in the hobby or with selling Koi, this sounds like a fish tale.  Read more on it here.

String Algae Problems?

If you are having a trouble with string algae taking over your pond, chances are that you have a layer of gravel covering the bottom.

Why ponds with rock at the bottom don't work

Imagine you take a dog and place it in a room with six inches of gravel for a floor.  Now you keep feeding the dog while letting its waste settle in the rock.  You keep feeding it and feeding it, and eventually, it's going the waste is going build up and turn the room toxic.

A pond with rock at the bottom is very similar to that situation.

Waste gets trapped between the small spaces between the rock.  Anaerobic bacteria break the waste down  and turn it into Nitrate (plant fertilizer.)  The string algae uses the Nitrate in the water as a catalyst to spur its growth.  A by product of the anaerobic bacteria breaking down the waste is Hydrogen Sulfide.  Pockets of Hydrogen Sulfide will build up in the mulm at the bottom of the pond.  When the pond is cleaned out, the pockets for gas escape and poison the fish (it's the rotten egg smell.)

In a natural aquatic setting, for example: a river, a stream or a lake, thousands to millions of gallons of water are replaced each day.  There is enough water flowing through a a natural ecosystem to keep the level of waste at an absolute minimum while supporting aquatics life.  A small pond in a backyard with a rubber liner and rock covering the bottom is not a natural aquatic setting.  In a lake, there is tens of thousands of gallons of water per fish.  In a backyard pond, there usually only a hundred gallons of water per fish.

How to get rid of string algae

Remove the rock at the bottom of the pond and install a bottom drain along with a filter system.  Waste will get sucked into the bottom drain and captured by the filter.  If fish waste and other organic debris is removed from the pond, the string algae will have nothing to fertilize its growth.

Filter System Components

A complete filter system will include mechanical, biological and UV components.  Mechanical filters will remove the solid waste from the water, biological filters will handle the Ammonia that fish produce and UV sterilizers will eliminate the free floating algae that cause green water.  They work together to keep pond maintenance at an absolute minimum.

A poorly designed pond will require you to muck it out on a regular basis.  This is not water gardening, it is pond garbage removal.

Sunday, September 19, 2010

Underwater Pond Camera

Check out all the shubunkins and goldfish swimming around in the pond. It is a little green, maybe some algae eaters will help it out.

Thursday, September 16, 2010

The Meaning of Koi Fish

Koi is the Japanese word for carp. Hobbyists in the Americas and Europe use the single word “Koi” when referring the to fish, while the Japanese call the fish Nishikigoi. It means “brocaded carp” and they use that term to differentiate between the regular carp they consume and the ornamental carp that are kept in pets. People that are not to familiar with them call them “Koi fish” (it’s similar to the word for the friendly orange fish, goldfish.)

It is believed that the Chinese brought the carp with them to Japan and with them, the knowledge of how to raise them in ponds for food. These plain carp sometimes had spots of yellow or red color. In the early 1800’s, the farmers in Niigata took note of this. They kept a few of the “special” colored carp and selectively bred them to bring out the color. Within a couple decades, the first bloodlines were established for the original varieties. Koi fish now come in a wide selection of colors, finishes, fin styles (butterfly long fin and regular) and scale variations (regular, scaless, or large scales along the dorsal fin and lateral line).

Some Koi fish colors are:

  • red
  • white
  • black
  • blue
  • yellow
  • green
  • purple
  • grey
  • brown
Some color finishes include:
  • flat
  • metallic
  • gin rin (pron. geen leen,) which is a pearlescent sheen that is on all the scales

Keeping Koi

Koi fish are considered an ornamental fish variety and are produced only for decorative value in outdoor ponds and water gardens. Keeping Koi has become exceedingly popular in the recent years, with the advent of overnight international shipping and compact filtration systems that purify pond water.

In the optimal environment, one that is low stress and properly filtered, Koi can live 20 to 30 years. They can also grow up to 3 feet if they have the rare “jumbo” genetics (do a search for “jumbo Koi” to see some for yourself). Koi are a schooling fish, and do best when there is a group of them in the pond. Overcrowding is an issue, as a rule of thumb there should only be one fish for every couple hundred gallons of water in the pond.

Koi are a hardy fish, they can live in a wide variety of conditions. Although they do thrive when the water is around 70 degrees Fahrenheit, the pH level is a neutral 7 and there if there is no Ammonia in the water (koi pond filters strip the Ammonia the fish produce from the water.)

Koi fish add interactivity to any plain water feature. Each fish has its own personality, some will even follow you if you are near the pond (they are usually looking for food.)

Wednesday, September 15, 2010

Coy Fish

Coy fish is actually a misspelling of “koi fish”.  Koi are a colored carp that people keep in ponds as pets.

During the last few decades, the hobby of keeping Koi fish in ponds has seen massive growth around the world. In Japan, the Koi fish symbolizes love and affection. No one can ignore the mesmerizing effect of a school of multi-colored fish swimming around the pond.

Japanese Koi come in various colors and sizes.  Watching them together, gracefully moving around the water, has a relaxing and hypnotic effect that makes you want to watch them for hours at a time. Along with vibrantly colorful Koi, there is a black type called Magoi that moves beneath the colorful school of Koi like a shadow, hence the nickname “Shadow of the Rainbow.”

Studies have shown that watching a vibrant school of Koi swimming in the water is of therapeutic in nature and imparts a calming effect on your mind. Watching the fish swim around the pond helps to reduce stress and gives an overall feeling of contentment and serenity.

Koi fish, not Coy fish

Keeping Koi is not only a pleasurable hobby, but it can also help you to relax and de-stress after a long hectic day.

Saturday, September 11, 2010

Koi Club Listings

How many Koi clubs can you find in the US?

Friday, September 10, 2010

Missing Koi Carp

I had a ghost Koi, I went on holiday my friend was feeding it, it was really big and about 7 years old, when I got home the pond lily had taken over the pond the fish was still alive but due to bad weather I did not get round to cutting it back for a week I haven't seen the fish for a few days now it is not coming up for food do you think it is dead, i cannot see the bottom of the pond. The pump was running slow also but I have cleaned that. -Wilma

It sounds like you had a predator visit your pond.  You can try to keep it from taking more Koi by covering the pond with netting.

Thursday, September 9, 2010

Giant Koi Carp Caught Near France

A man named Raphael Biagini caught a giant Koi carp in a lake in southern France. Luckily for the koi fish, he released it. Read more about it here.

Giant Koi picture unrelated:

Wednesday, September 8, 2010

Koi van almost flips over

The Koi van was going backwards downhill when it slipped in the mud and almost flipped over.

Thursday, September 2, 2010

Koi Fish Varieties

Many people keep koi fish in ponds or tanks, but only some can easily identify the types of Koi that are swimming around in them. In this video, we show 38 different types of Koi, including some rare varieties. Use this video to help you learn how to identify Koi when you see them.

Sunday, August 29, 2010

Tancho Koi Fish

Tancho Koi have a single spot of color on top of their heads. It can be yellow, purple, black or even the most common Tancho spot color, red. The spot should be a circle shape. Irregular shapes are not wanted.

The Tancho Koi are similar to the Red-crowned Cranes that live in Japan. The red spot symbolizes trustworthiness, lastingness and fortuitous nature. They are popular in Japan because they bear a striking resemblance to their national flag.

Zen Japanese Koi Pond

The Koi are swimming around in the pond. The owner has many varieties in his collection.

Wednesday, August 4, 2010

Upper Midwest Koi Club Koi Show 2010

A slide show of the 2010 UMKC Koi show.

Tuesday, July 6, 2010

Thousands of Tosai

Tosai swarm around a sale tank in this video clip. It looks like a tank that's full of Gosanke and a tank with Kujaku.

Thursday, June 24, 2010

Swimming with Koi

Swimming with Koi fish is a wonderful experience. They will swim all around your. The Koi may even try to nibble on your toes! Some of them might even let you pet them.

Wednesday, June 23, 2010

Small Yamabuki

I have a male Yamabuki Ogon; and he is about 6 inches long. What are the chances that he would breed this summer? -Beka

There is a chance that your Koi could breed this year, if it is at least two years old.  Usually two year old Koi fish are at least ten inches long.  If the parent fish were small, then your fish could be mature enough to breed.  Make sure you have plenty of vegetation or spawning mats in the pond for the fish to spawn in.

Saturday, June 19, 2010

How often do Koi breed?

Koi will usually spawn once a year, in the spring. The spawning is brought on by the large swing in temperatures that occur in that season. The Koi will appreciate a bunch of vegetation to spawn in, it provides a home and some cover for their eggs. When they are spawning, make sure there are no sharp objects in the pond. The males with slam the females into the walls of the pond, if there are any sharp rocks, they will damage the Koi.

Here are come pictures of baby Koi:

Thursday, June 17, 2010

9th Malaysia Koi Show Champion

This Kohaku Koi in the video clip took is the Grand Champion for the 2010 Malaysia Koi Show.


pond net

Koi are jumpy when they are in a new environment and in new water. They are also sensitive to changes in water chemistry. You can notice your Koi acting funny if there is a problem in your pond.

When you get new Koi, it is best to either cover the pond or tank, or place a barricade that prevents them from jumping out. Koi seem to be extra jumpy in small tanks. Extra care should be taken to make sure they can't find a way out of the enclosure.

If you use a net, make sure it is out of the water. Koi can get caught in the netting, which will cause damage or even an infection. Netting can easily be attached to a tank with clamps or weights. Outside over a pond, stakes are used to hold it in place.

Netting will prevent predators from reaching your Koi.

Tuesday, June 15, 2010

Kissing Koi

Kissing Koi
Two Koi kiss each other on the lips.

Monday, June 14, 2010

Foreclosures Affecting Koi

The housing crisis affects Koi too. Many home owners facing foreclosure choose to abandon their Koi when they leave their homes. Koi require a filter system and aeration to keep them alive. When the electricity is shut off, the filter systems shuts down. If you notice a Koi pond that has been abandoned, contact your local SPCA or Koi club.

Thursday, June 10, 2010

How to draw a Koi Fish

In this video clip, drawing a Shusui Koi fish is demonstrated in a few easy steps. You start with the outling of the fish, then you add the details, like the Koi's face, scales, and color.
Shusui Koi

Monday, May 31, 2010


The Gosanke category consist of the Kohaku, Sanke and Showa types of Koi. The colors that make up the category are a combination of red, white and black. These are the most sought after Koi in Japan. They are prized for their beautiful colors. Almost all Koi shows are won with one of these Koi.


Saturday, May 8, 2010

Koi Type: Doitsu Hariwake

Doitsu Hariwake
Doitsu Hariwake

This is a scaleless metallic white koi with a metallic yellow pattern. These Koi are rarer and tend to be more expensive than their Kikusui counterparts. The yellow can either come in a Kohaku-like pattern with "steps" of color or a Shusui-like pattern with long wavy strips of color.

Thursday, May 6, 2010

Spring Care of Koi

This time of the year is the toughest on Koi. The problems that plague them include:
  • Disease
  • Temperature Fluctuations
  • Predators
  • Stress

The Koi that spend the winter outside have just come out of hibernation. Their immune system really isn't up to snuff for dealing with the onslaught of problems that arrive with this season. Large temperature swings screw with their metabolism. Small ponds that don't receive any shade are susceptible to this. The life cycle of parasites is still slow, but they still will infest and overwhelm a Koi. The damage they do will take a long time to heal, so extra care must be taken to keep an eye on the Koi's behavior. Koi will swim slowly in the cold water and may pause for a while on the bottom, but they shouldn't list on their side when swimming or resting. Watch for flashing too.

Spring Koi Pond
Koi fish love clean water

Koi will also be weak from fasting and living off of their fat for an extended period of time. Any stress will take an extra toll on the fish's health. Predators will be the primary source of stress. Netting should be placed over the pond to prevent any predators from entering and harming the fish.

Koi Fish Feeding Swarm

These Koi are nuts, they eat their food like no tomorrow. I would not want to get caught in the middle of that feeding frenzy.

Shiro Utsuri

Shiro Utsuri
The Shiro Utsuri

The Shiro Utsuri had three pellets of Koi food. He wanted to bring them to his nook and save them for later, but he had only one mouth to move them with. He didn't want to leave the pellets, he was afraid some other fish would come along and gobble them up.

The Shiro Utsuri was pondering his dilemma when a small red and white Koi appeared. He asked the little Kohaku if he could help move the pellets. The little fish tried with all his might, but he wasn't strong enough to make the smallest pellet budge.

A little while later, a big yellow fish slowly made his way across the bottom of the pond. The Shiro Utsuri asked the old Yamabuki if he could help, but alas, he was to weary to help either.

"I can't move this food all by myself. I might as well eat it now and just save the single pellet that I can move."

Along came a little tadpole. He noticed that the Shiro Utsuri was sad.

"What's bothering you my friend?" asked the tadpole.

"I have three pellets of Koi food, but I can't move them all and once and I'm afraid to lose them while I am bringing them home one at a time."

"I know," the tadpole said, "make a bubble to put the pellets in and then you will be able to carry them all at once to your home."

"But who will guard the pellets while I am at the surface?"

"I will!" said the little tadpole, "I will make sure no one touches your pellets of Koi food."

"But what do you want in return? One of my pellets?" the Utsuri inquired.

"No, I just want a chance to prove myself. Everyone thinks that a little tadpole like myself isn't capable of great things. I want to prove them wrong."

"What happens if you aren't able to defend my pellets and someone eats them all? I won't have any then."

"I swear on my honor, these pellets shall go un-eaten or I will swim to the shores of the pond to find you 3 new pellets."

"Alright then, off I go!" The Shiro Utsuri swam to the surface and formed a bubble. He took a his time to swim back downs, he did not want to burst the bubble and take even more time than he had to.

To be continued...

How to get Ammonia out of fish pond? - Judy

There are three ways to remove Ammonia:
  • Water Changes
  • Altering Fish Care
  • Increasing Filtration
Water Changes can be used to remove Ammonia from the pond. Fresh waster from a well is the best source. City water will need to be chlorinated.

You can also lower the water temperature, reduce feeding or remove some fish from your pond.

The only permanent option is to add more filtration to the pond. A filter will take Ammonia and will transform it into less harmful chemicals.

Thursday, April 8, 2010

Seeing Clear

Obtaining crystal clear water in your pond isn't impossible if you have the right tools. Picture this: Your lawn is perfectly manicured, your garden is in full bloom and your pond is murky, with an extra helping of green algae. This is the scenario that many water gardeners face. They think that it is normal for their ponds to look nice and clear in the spring, and then turn green with algae blooms when the weather warms up. They believe that having a green pond is normal and there is nothing you can do about it.

Most water gardeners haven't been properly instructed on the dynamics, particularly filtration, of keeping a pond either by the pond installer or the store that they bought their equipment from.

Proper Filtration = Clear Water

The two primary causes of murky water are algae and debris. These are taken care of by the filter system, which will remove debris from the water and will stunt algae growth.

Filtration isn't the only factor to keep in mind. You can't just slap a filter and a UV light on a pond and call it a day. Things like fish load, rock on the bottom and dead spots can severely affect any filter system's ability to do its job.

The Smart Pond

A smart pond will include a surface skimmer, bottom drain and mid-water returns (to control the current in the pond).

Unfortunately, the majority of ponds installed in the US feature a skimmer, a waterfall and about half a dump truck load of gravel. These ponds work for about a year, then you need to power wash and pump all the fish waste out of the pond. This process needs to be repeated semi-annually.

A smart pond, with the proper filtration equipment, will remove and contain the fish waste as soon as possible. It will not allow the waste to build up at the bottom of the pond and fester. Removing the waste that the fish produce is key to maintaining a crystal clear pond.

Most ponds can be easily maintained with a filter system that consists of a bead filter and a UV light. The bead filter will handle the fish waste and the UV light will sterilize the algae that causes green water.

What about barley straw?

Bales of barley straw can be added to the pond and in eight weeks, the bacteria that produce an algaecide mature. Your water then starts to clear up. You end up with a nice view of a hay barn dumping ground.

Not only are UV lights are installed out of sight and out of mind, but they start to clear the water in your pond as soon as they are turned on. Your pond will clear up in a few days versus waiting a few weeks.

Many “experts” will tell you that in order to have clear water, you will need to add enzymes and an assortment of other chemicals to the pond on a regular basis. With a smart pond, no chemicals are needed for water clarity.

Most people assume that a clear pond requires a lot of maintenance and upkeep. If a pond has proper filtration, keeping it clean is a breeze.

Tuesday, March 30, 2010

Koi Tumor Removal Surgery Video

Warning, the two video clips are somewhat graphic, they show the procedure of removing a tumor from a Koi fish.

The veterinarian starts off by performing an ultrasound to get an idea of the size and approximate location of the tumor.

They remove some scales that are in the way of the incision. Splitting scales with a scalpel and leaving them in place is a bad, bad idea.

The vet then sterilizes the surgical area with iodine.

They run water with over the gills to enable the Koi to keep breathing. Take note, they don't really show it in the video, but when a surgery is performed on a Koi, the vet watches the OBR (Operculum Beat Rate) to make sure the Koi doesn't go too far under with anesthesia.

After the vet makes a small incision, he removes the excess fluid from the body cavity with a suction hose. The rest of the incision is performed with a scalpel.

The tumor is removed and examined. The body cavity is cleaned and examined.

The incision is sutured up and cleaned. A post-op ultrasound is performed to make sure that the Koi's internal organs are ok. The Koi's body cavity is then filled back up with a sterile fluid.

At 4:24 on the second clip, you can see the Koi's heart beating on the ultrasound screen.

The Koi fish is then revived in a small tub of aerated fresh water.

Friday, February 19, 2010

Underwater Koi

Koi swimming around in their pond, filmed underwater

Monday, January 11, 2010

Turning Pink

Pink Koi
My white Koi are turning pink??!! Can you tell me what I could be doing wrong?? - Jann

There are a few reasons why your Koi could be changing color:
  • You are feeding it a color enhancing food
Feeding a white Koi this type of food is not recommended because it will add a red pigment to their scales. It looks amazing when you have a red Koi, but since you have a white one, it is throwing off its color.
  • You could have a water quality problem
It will stress out the fish and it will "blush". Small veins will appear through the scales and on the head of the Koi and give it the appearance of turning pink.
  • You could have a parasite infestation
Again, the Koi will be stressed and the viens will appear.

Check your Koi food, see if it has color enhancing additives. If it does, stop using it immediately and switch to a normal Koi food. Check you water quality, including pH, Ammonia, Nitrite and Nitrate. If any of the parameters are off according to the test kit, do a water change and increase your filtration or decrease the amount of food you give your Koi. If the previous suggestions don't work, get a veterinarian to come out to your pond and check your Koi for parasites. They will prescribe a treatment plan to help you get rid of the infestation.

Friday, January 8, 2010


The Asagi is a blue-grey Koi with red scales on the bottom half of its body.