Koi care collection

Koi Fish

A growing library of clear, useful guides about koi fish.

Can Frogs Live In Koi Ponds?
Koi FishJun 27, 2022

Can Frogs Live In Koi Ponds?

Frogs are amphibians that typically live in moist or wet environments. This means that they can live in both water and on land. For more pond-care guidance, read How Old Do Koi Get? and review USGS: Dissolved oxygen and water.

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Can You Swim In Your Koi Pond?
Koi FishJun 27, 2022

Can You Swim In Your Koi Pond?

No, you cannot swim in your koi pond. Koi are a type of fish that are often kept in ponds and water gardens. For more pond-care guidance, read Can I Put Chlorine In My Pond? and review USGS: Dissolved oxygen and water.

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Do Copper Pennies Prevent Algae?
Koi FishJun 27, 2022

Do Copper Pennies Prevent Pond Algae?

Copper is a biocide, meaning it kills living organisms, and is often used as an algicide, or algae killer. Ingesting small amounts of copper can be harmful to humans, but it is effective in killing algae. For more pond-care guidance, read Can You Turn A Koi Pond Into A Swimming…

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How Do I Put Water Lily In My Koi Pond?
Koi FishJun 27, 2022

How Do I Put Water Lily In My Koi Pond?

Water lilies are a common addition to koi ponds, as they can help to create a more naturalistic environment. There are a few things to consider when adding water lilies to a koi pond, such as the size and depth of the pond, the type of water lily, and the planting method. For…

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Do Koi Fish Eat Leaves?
Koi FishJun 27, 2022

Do Koi Fish Eat Leaves?

Koi fish are a type of freshwater fish that are popular in both ponds and aquariums. They are a member of the carp family and are native to Asia. For more pond-care guidance, read What Is The Life Cycle Of A Koi Fish? and review MSD Veterinary Manual: Fish nutrition.

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Why Do Fish Go Crazy After Water Change?
Koi FishJun 27, 2022

Why Do Fish Go Crazy After Water Change?

Fish go crazy after water changes because of the sudden change in water quality. The new water may have a different pH, temperature, or hardness, which can be stressful for fish. For more pond-care guidance, read Why Is My Fish Breathing Fast After Water Change? and review…

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Do Birds Eat Pond Fish?
Koi FishJun 27, 2022

Do Birds Eat Pond Fish?

Birds are known to be opportunistic feeders, and will take advantage of whatever food source is available to them. This includes pond fish, which are often an easy target for birds. For more pond-care guidance, read How Do You Harvest Ground Koi Scales? and review MSD…

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Do Crows Take Fish From Ponds?
Koi FishJun 27, 2022

Do Crows Take Fish From Ponds?

Crows are known to be opportunistic feeders, and will take advantage of whatever food source is available to them. This includes taking fish from ponds. For more pond-care guidance, read How Much Salt Should I Put In My Koi Pond? and review USGS: Dissolved oxygen and water.

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What Plants Are Poisonous To Koi?
Koi FishJun 27, 2022

Which Plants Are Unsafe Around Koi?

Koi are a type of carp and are popular as ornamental fish in outdoor ponds. They are hardy and can withstand cold temperatures, but they are sensitive to some chemicals and plants. For more pond-care guidance, read Can I Put Catfish In My Koi Pond? and review USGS: Dissolved…

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How Many Babies Do Koi Fish Have?
Koi FishJun 27, 2022

How Many Babies Do Koi Fish Have?

Koi fish are a popular species of freshwater fish that are often kept in ponds or aquariums. They are a member of the carp family and are native to East Asia. For more pond-care guidance, read Do You Need A Filter If You Have A Skimmer? and review USGS: Dissolved oxygen and…

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Do Koi Need Shade?
Koi FishJun 27, 2022

Do Koi Need Shade?

Koi are a type of ornamental fish that are popular in both outdoor and indoor ponds. They are a member of the carp family and are native to East Asia. For more pond-care guidance, read Can Koi Have Lettuce? and review USGS: Dissolved oxygen and water.

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Why Are My Koi Eating My Lilies?
Koi FishJun 27, 2022

Why Are My Koi Eating My Lilies?

Koi are a type of carp and are known for their voracious appetites. They will eat just about anything, including lilies. For more pond-care guidance, read What Color Should Pond Water Be? and review MSD Veterinary Manual: Fish nutrition.

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