Koi Fish Belly Flops


Jay

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This summer, my Koi (over 10+ inches long) started jumping up in my backyard pond. I have had the larger ones for over five years and this is the first summer I witnessed this unusual behavior. I researched it, but I couldn't find a reference that seemed to be applicable. Have anyone else experienced this and maybe have an answer? Thank you.
 
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hi jay, im no expert but i would check your water parameters as fish jumping can often be signs of stress, there are a lot more informed members on here who will sooon give you all the advice you need. and welcome to the forum !!!!!! cheers mark
 
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This summer, my Koi (over 10+ inches long) started jumping up in my backyard pond. I have had the larger ones for over five years and this is the first summer I witnessed this unusual behavior. I researched it, but I couldn't find a reference that seemed to be applicable. Have anyone else experienced this and maybe have an answer? Thank you.
If the water parameters are good and the koi only jumps a few minutes and then go back swimming normal, I wouldn't worry. If they keep jumping they could suffer from parasites.
My koi have done that a few times, right after feeding, but after 2 or three jumps they stopped
 
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I have one small fish that does that all the time. It's quite funny. It does what looks like a running start, then breaks the surface of the water. I don't even know what type of fish it is. It's small, maybe 4-5 inches long and white.

Once in a while my bigger fish might jump creating a huge splash. I have some huge ones in there.

If the water parameters are good they might be just catching bugs.
 
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Jay

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Thank you for your response. As the season changes, the jumping has decreased. I have gold fish in there with them (which are very large), but only the koi fish larger than 10" jump up.
 

Jay

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H! I'm not sure of the number of fish I have. I've had my pond over 5 years. There is a mixture of koi and goldfish (which are proliferate breeders). Some of my koi are about 12 inches long and some gold fish are about 5-6 inches long. My pond holds about 3,500 gallons. There is a waterfall which runs continuously and also there is a submersible pump.
 
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