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Anna
Anna, Koi Keeping-expert
Category: General
Satisfied Customers: 11130
Experience:  Biology degree, 35 years fishkeeping experience
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Why do the koi jump out of water

Customer Question

Why do the koi jump out of water
Submitted: 1 year ago.
Category: Koi Keeping
Expert:  Anna replied 1 year ago.
Hello and welcome. My name is ***** ***** I'm a biologist with a special interest in fish. I'll be glad to help with your question.
There are several reasons why koi jump out of the water. One of the most common is parasites. The parasites cause itching and pain. The fish will leap out of the water and also rub on things in the pond in an attempt to escape the itching. If your koi have parasites, you can treat with a medication called praziquantel. It is sold on pet stores and pond supply stores.
Koi also will do a lot of leaping out of the water when they are spawning. Lot of chasing goes on. The females may get tired of it and leap out. Males trying to win the females may also jump.
Finally, they may jump out because they are scared. If a predator, such as a raccoon or heron, visits the pond, the frightened fish may continue jumping out even after the animal is gone.
If you have more questions, let me know in a REPLY. I hope this information helps.
Anna