Why Do Koi Jump Out of the Water

Many owners of koi carp will witness their fish jumping out of the water from time to time. It can be entertaining to watch! However, it can also be dangerous, as your koi can jump out of their pond and become beached. It’s therefore vital that your pond is protected to keep high-jumping fish safe.

But why do koi jump out of the water? Read on for some possible reasons for this behavior and to find out what you can do to keep your fish safely in its pond…

Poor water quality

Maintaining good water quality in your koi pond is vital to keeping your fish healthy and happy, and this means regularly testing the water and correcting any chemical imbalances.

If the water quality in your pond is poor, and full of toxins or out of balance, this can cause your fish to become unwell and literally try to escape from the pond to find a better quality environment.

Lack of oxygen

Your koi pond should be well oxygenated with good water movement. If the depths of the pond are stagnant or do not get enough aeration, your koi are more likely to congregate near to the top of the pond and gasp for air. This can also lead to them breaking the surface of the water, jumping around or jumping out of the pond.

Being chased

Koi do go through phases in which they are fairly lively, and may dart about energetically and chase each other around. This is particularly true when koi are getting ready to mate, when the male fish will chase the females quite aggressively!

Why do koi jump out of the water?

As part of this chasing around, your fish may break the surface of the pond and jump out of the water.

Exploring and having fun

Koi are fairly inquisitive fish, and sometimes, they will jump in and out of the water because they want to see what is up there, or as part of their games!

If you hand-feed your fish, you might even be able to observe your fish jumping up out of the water when they see a person at the side of the pond, as they come to associate this with feeding time and are keen to get their treats!

Learn more about koi carp…

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