Koi & Goldfish Questions & Answers

What are Koi?

Koi belong to the carp family like their cousins the Goldfish.  It is believed that Koi originated in Persia.  However, the Japanese are the breeders credited with producing the many beautiful types of ‘”Nishikigoi” we enjoy today.  The last decade has seen the introduction of new varieties and a popularity in the U.S. for the long fin types.

What are Goldfish?

Goldfish, known also as the Golden Carp, are a fresh water fish that originated in Southern China.  The Goldfish are without a doubt the most popular pet fish in the world.

Distinguishing features:

Koi have barbels (whiskers) around the mouth and Goldfish have no barbels.  Koi and Goldfish come in many sizes and color classifications.

How long do they live?

The record for Koi is 226 years.  However, 30 years is average.  A life span of 10 to 20 years for Goldfish is not uncommon.  Records exist of Goldfish living for more than 40 years.

 What are the environmental needs of Koi and Goldfish?

It is preferable that a Koi pond be at least 1500 gallons with a minimum depth of 3 feet.  Common Goldfish varieties will also thrive     in these conditions.  However Fancy Goldfish require warmer and shallower indoor environments.

What do they eat?

Commercial brands of fish food are good.  Ones with higher amounts of wheat germ are better in the colder climates of the Pacific Northwest.  Vegetables like spinach, butter lettuce, zucchini and cooked sweet potatoes are all good.  Fruits, like grapefruit and seedless watermelon provide needed  vitamin C.

How often should I feed my fish?

Koi and common Goldfish should be fed 3 to 4 times a day in amounts they will eat in 5 minutes, when the water is warmer.  When water temperatures are 50 degrees F. or less, DO NOT FEED! Fish are unable to digest food and run a risk of poor health or death in colder waters.

Do I need a permit to dig a pond?

Some areas of the country require permits for ponds.  Always check your local building codes.

Do you eat these fish?

NO! They are valued as pets!