This Is How Long Koi Fish And Goldfish Can Live In A Pond

Find Out How Long Fish Can Live In Your Backyard Pond
Grandfather and grandchild playing with koi fish in a backyard pond

How long koi fish live in a pond ranges from 15 to 40 years. How long goldfish live in a pond is 5 to 25 years. It depends on several factors.

Discover more detailed information below-

An Immortal Koi Fish?!

“Haha, not quite,” laughs Christina.

She continues, “This particular koi fish is over 200 years old. I highly doubt they live that long on average.” Matt frowns. “Still, that’s a long time to have a koi fish. How long do koi fish live in a pond? And how many fish will fit in a pond?”

Christina shrugs. “I don’t know, but we should look it up along with how long do goldfish live in a pond. That way, if koi live too long for us we can have something else already researched.”

The couple grabs their phones and starts looking for information on Google.

Here’s what they find and share with each other:

How Long Koi Fish Can Live In A Pond

Playing with koi fish while feeding them

Domestic koi fish live around 15 years on average in a pond, 20 years in great ponds. Japanese koi fish usually live longer, sometimes for 40 years and longer. In near perfect conditions, Japanese koi can live into the 200’s. It depends on genetics, diet, and temperatures.

What Can Change Pond Koi Fish Lifespans

Koi swimming in a pond with pond rocks in it

Genetics is a major difference. Japanese koi grow larger and tend to live longer than domestic koi fish. Japan has been raising koi for far longer than America. This means they’ve had more time to enhance the genes and make each generation better.

What koi fish eat can also affect their lifespan. Western breeders tend to focus on size over lifespan. They feed their koi richer diets. This makes them larger but can be bad for their health.

Water temperatures also affect how long koi fish can live in a pond. Koi hibernate through winter, which lengthens their lifespan. This means they can live longer in places with long winters.

How Long Goldfish Can Live In A Pond

Goldfish

In a pond, goldfish can live anywhere from 5 to 25 years. For fancy goldfish, their pond lifespan is usually 5 to 10 years. Common goldfish can live in a pond for 10 to 25 years. It depends on the type of goldfish, the quality of the pond, and their care. 

What Can Change Pond Goldfish Lifespans

Genetics once again plays a big part in how long goldfish can live in a pond. Fancier goldfish are more delicate, especially to water quality. The physical trait they are bred for often comes back to hurt them. For example, rounder bodied goldfish have more problems with floating, swimming, and their bladders due to their unnatural shape.

Water quality is huge too. Ponds with better water quality (like ecosystem ponds) tend to have goldfish that live longer. It’s just like with people. The better and healthier our environment is the longer we’ll live.

You May Also Like To Read

“So, since this is our forever home, we can get koi fish and goldfish,” says Christina happily. Matt frowns and nods. “Well, yes, but we should do more research on pond fish before we get too excited.”