Use these tips to make a big difference in your Koi’s exhaustion and stress levels when bringing your koi to a show, moving them to a new pond, or any other time you have to relocate your pond fish.

The health and well-being of your koi is of the utmost importance to us and so we put together this guide on moving your fish safely, to ensure our friends are taken care of! Let us know any other questions you have on the process.

Take your time, be cautious, and you will have a successful move for your finned friends.

Items for Koi Transportation

You will need a few important items for a moving your koi in a healthy fashion, our recommendations:



How to Move Koi Video by Taro Kodama

Enjoy this video overview by Taro Kodama and read the detailed instructions on how to move koi below in the article.


We send thousands of online koi for sale by mail every year and while the process seems challenging, there are a few important things to remember as mentioned in this article. Water quality is everything and you must prepare the koi weeks in advance for their long and stressful journey.

When we sell koi, they have already been prepared to be sold and have been in holding tanks. Just like us, you must prepare your koi for transportation and for example, stop feeding them in advance of the trip to keep water quality high.

You may also consider reading our koi care after receiving blog post that dives into the subject of how to take care of koi after receiving from a koi distributor.

What is The Best Way to Transport Large and Small Koi Fish?

Transporting large fish can be an extra challenge due to their size and requirements. At any size, you must prepare these items and follow the steps to pack.

Order of Packing Koi in Transport Bag

  1. Put a few buckets of water, salt and ultimate/water conditioner
  2. Gently place koi in one of your koi transport bags
  3. Inject pure oxygen
  4. Close it with rubber bands – Triple Check for Security!!
  5. Place transport bag in a box for easy handling

Please make sure Koi’s body is covered by water, at least 90%.

For a single koi bag, add a half of a handful of salt, and a few capfuls of Ultimate/ClorAm X.

If you pack your Koi right, it should last 24 hours. If you pack less Koi right, it will last longer.

Once they are packed, the best thing we can do for them is not to bother them. Leave them alone in the dark.


Moving Koi Long Distances?

If you plan to ship Koi by air, you still need to box your Koi. If you plan to travel by car, you have 2 options. One is to box your Koi as discussed already. The other option is to use a transportation tank in your truck or van.

The benefit is that you do not have to pack your Koi one by one. This will not only save you time but allow for more koi to fit in your moving space.

If you are not confident in packing your Koi, especially the big ones, we highly recommend just getting a tank to be safe.

Items for Transport Tank

If you use a transportation tank, fill the tank with water all the way to the top. Make no air room so that koi will not jump and damage themselves. Salt should be about 0.3% (3lbs/100 gallons), along with the package recommended amount of ChlorAm (or whichever product you are using).  Make sure these are dissolved and mixed throughout the water, then carefully add your koi. Before sealing it up, make sure air diffusers are producing bubbles.

IMPORTANT – When you use the transport bag method, be EXTRA careful with the closing zipper. While you drive, the zipper may slowly get loose and start to open. If your koi see a light, they will try to come out from there, and they’re very smart. Triple check the security of the tie so you don’t find yourself in the terrible situation of losing several Koi while driving. 

Salt is dangerous to a koi if too much is added. Make sure you read our article on using salt for koi.


Vehicle Transport Tip

If you transport your Koi in a box, please place the box sideways to car’s direction. If they are horizontal, whenever you brake or accelerate Koi will hit its nose or tail or in the worst case, you may even break their tail. Be as gentle and thoughtful as you can for the well-being of your beloved friends!


Prior to Moving Your Fish

You will need to stop feeding for one week to allow their digestive systems to clear out.

Ideally, move your Koi to a holding/quarantine tank with less or no algae. Why do we do that?

In a bag or transportation tank, it is almost like your koi are onboard a space shuttle, their whole environment is contained. Their excrement is very high in ammonia by-products.  As you know, ammonia is toxic for Koi and can quickly damage or kill your Koi.It is very important to keep the Koi’s moving environment as clean as possible. (if you want an in-depth refresher read: Tips for Improving Nitrogen Cycle)


Using Net to Collect Koi

When attempting to collect your fish, BE PATIENT and coax the fish into your netting.

Koi will be (understandably) weary of the net, and they can become very stressed and tired if you chase and force them into the net. This would start your fish off on a bad foot for travel, and increase the chances of it getting ill or worse on the trip.

Take your time and be gentle to help make the moving a less confusing event for your friends. We offer several pond nets on our pond supplies website. View high quality koi nets 


What to do After Transportation of Koi or Returning from Show

Your Koi finally gets to the destination, or the Koi show is over and you’ve gotten your Koi back home safely.

Now what to do to ensure the least amount of stress?koi quarantine tank setup

You definitely want to let them rest in the quarantine tank. Traveling is as exhausting and stressful to Koi as it is to humans, and even more so because of the very contained small environment. 

When they are exhausted, it is best to provide them a very clean managed space where they can rest and relax. Their immune systems will be lower (from not eating and traveling) and a pond has more pathogens than a quarantine tank. 

Get your quarantine space ready with a raised salt level of 0.5% and leave them alone for 2 weeks.

If your quarantine tank has proper filtration, you may feed them. If you are concerned about the ammonia levels from the koi’s excrement, it is safe to not feed them for the two weeks after travel.

Also, bad water quality will cause issues faster than undernourishment, so error on the side of water caution.

If you come back from a Koi show, I would suggest 3 – 4 weeks minimum to ensure there is no risk of Koi Herpes Virus or any other koi disease. This gives you time to watch for symptoms without contaminating the whole pond.

This keeps everyone safe and happy! If you have no filter, you may also want to do light feeding after the two weeks, just change out some quarantine tank water every few days (25% water change should be sufficient with added salts accordingly). If you have a filter for the quarantine tank, there is no need to wait for 2 weeks. You can feed them right away.

What About a Koi Emergency After Moving?

If you should encounter an emergency or find your Koi very injured, please set up the above mentioned holding tank and transfer the Koi as soon as possible.

At this time, it is very important that water is warm.  It would be ideal if it is higher than 70° F. If it is not warm, their immune system does not work and any medicine you use will not work as effectively as it should. Also, understanding why salt is good for your koi pond is very beneficial knowledge. 


Tips for Moving Pond Fish in Winter


“Should We Bring Koi Inside During the Winter Months?”

The answer depends, do you have a holding tank with both a filter that is established or can be established and a heater. This koi quarantine kit shows everything you need.

If your answer is yes, then, please bring them in before winter comes. You can set water temperature 50-55° F and feed Manda Fu and Kodama Koi Food all season lightly. If you would like to enjoy feeding more, please set up the water temp at 65° F or higher.

If your answer is no, then, do your best to help prepare your Koi pond for winter. Feed heartily during summer and fall. In the fall, test and treat the pond water to make sure there are no parasites. Now your Koi can rest well until the next spring!

For the spring, follow this guide to Spring Koi Pond Prep to insure a healthy transition.


“Is it Safe to Move Koi Fish if Water is 50° F or Below?”

Seeing your fish relaxing quietly at the bottom of the pond, you may wonder if it is safe to disturb them or transport your koi during the winter. It is true that moving during winter has higher stress for your fish so, if it is possible, moving them before or after is a preferred method.

Basically, I would not recommend moving Koi in winter. If they can wait until spring, wait. Please do not move them.

If you must move or transport your koi to either a new home or for another important reason, you can help them by:

1. Use Pond Water: Try and use some (25-50%) water from the pond you removed them from. Keeping their living medium as consistent as possible will reduce stress and shock.

2. Allow to Rest in Quarantine Before Going into New Home: If possible, follow the same steps as you would from returning from any transportation. Use a quarantine tank setup to give the koi a peaceful place to rebuild their immune system and be less stressed in the controlled environment.

3. Wait Until Spring: You can release into your pond once the water has warmed up and you have started your usual Spring Pond Prep Maintenance. If you can wait until spring to add them to the new pond, this is best. If it is not possible it’s ok, in lower temperatures, your koi fish’s immune will not heal, but it will usually not get worse either.

In cold temperatures, koi are slow moving anyway and should be easy to catch. No need for extra aeration as cold water has a lot of dissolved oxygen. In summer we need a lot of oxygen because warm water holds less oxygen.


Interested in More Koi Health Tips?


Read our koi information guide and see all the top blogs we have produced for helping you manage koi ponds.

Koi Information Guide


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