Quarantining Koi Fish

Quarantining Koi Fish 


New Koi Fish parents are often excited to get their new fish into their ponds as soon as possible. This however, can lead to a series of events that may endanger your Koi pond! Wild Rock Koi always recommends that you Quarantine your new fish in order to keep your pond healthy. Here you will find a few points that we at Wild Rock Koi recommend you do to keep a happy and healthy Koi Pond. 

1:  My must set up a koi pond quarantine tank. You must not introduce your new Koi to your Koi pond. Keep the new Koi in a separate tank and monitor it for several weeks. You will want to do this ahead of time before you make your koi purchase. It is a must to quarantine any new Koi from other ponds because they may carry parasites, bacteria, fungi, or viruses.  A quarantine tank will also help reduce the stress on newly purchased Koi in order to help them thrive in their new homes. This will also help your current pond inhabitants from being introduced to something foreign that they might not have an immunity too.         

2: It is a good idea to quarantine your newly purchased fish from all dealers, both new and old. Deals new to you may not have quarantine practices that are up to high standards, and deals that you trust may not catch everything that you would expect. There is no downside to not quarantining your new fish, at worst it will be just a few extra weeks to ensure your pond has as few problems when introducing the new inhabitants as possible. 

3: As mentioned before you will want to set up this quarantine tank with water from your pond so as to acclimate your fish to your specific pond water. This water should not go back into your pound once you’re done with your quarantine cycle as it may carry bad organisms from your new fish. 



What do I do to set up my quarantine tank?

For your quarantine you want to set up a large pond tub. For every 100 gallons of water you want to add around 3 lb of salt (0.3% salinity). Koi need to intake salt into their bodies, and some parasites can’t live in a certain amount of salt. If you add more the .3% salt its fine but this amount should not exceed .7%. you want to leav your quarantined fish in the tank for around 3 weeks, 2 weeks is fine but some fish diseases may not show up for 3 weeks. If you have a filter on the tank feed your fish lightly, but if you don’t have a filter on this tank you will want to do a partial water change on the tank ever2-3 days. 25% water change is what you should aim for but if you do less its fine. During this time you may lose Salinity, so check the salinity levels after. If your salinity levels are greater then 0.7%  you will want to add more fresh water to lower the levels. Its also a good idea to add water from your pond to that your new koi may adjust to it. After the first week has passed and your koi looks well you may wish to treat it with anti-parasite treatments in order to help its condition along. Lastly you want to make sure that you constantly check Ph, Ammonia, Nitrite levelrs regularly to make sure there are not any sudden spikes; you will want to also keep your quarantine tank’s temp around 65-78 degrees, the closer to 70 degrees the better. 


Once you set up your quarantine tank you must take the following steps


1:  Check the water conditions frequently. If you don’t you may miss some important queues from your quarantined fish that are important stress or environmental indicators to your fishes’ health. Minimal food will help with ammonia and nitrite levels.

2:  Keeping the water around 70 degrees will help greatly with your koi’s overall immunity system. The temperature will also help with a quicker recovery from exhaustion from your Koi’s journey from the store to its future pond home. Lastly diseases like KHV (Koi Herpies Virus) show up a lot more at higher temperatures, keeping your quarantine around 70 degrees will allow you to see any breakouts over a 2-week time period. 

3: It is a good idea to add a smaller, cheaper, koi from your koi pond to the quarantine for a few reasons. Firstly, if any diseases that that either your new fish or your old fish might not be immune too will show, and the fish may build up immunity over time. When these fish enter your pond, they will help spread immunity to your other first. Secondly, Koi are very social fish and having a friend will help the koi recover quicker. We say put a cheaper koi as a tank mate because if your new fish is indeed sick, that sickness will spread to your other fish. It sounds cruel but it’s better to lose one fish then your entire pond. 

4: If you are even unsure about anything during this process its always a great idea to talk to your more experienced koi friends, or you are more then welcome to call us at Wild Rock Koi. If you have any issue take pictures, bring in water samples, or anything else that may give us more information to help you during this time. The more information the better! 

5: Lastly you should always remember as a pet owner Quarantining your fish is your duty as a responsible Koi owner. You are ultimately the first and last line of defense for protecting your pond.

Fish health