Koi care collection

Koi Fish

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

How Do You Dechlorinate Tap Water For A Koi Pond?
Koi FishJun 29, 2022

How Do You Dechlorinate Tap Water For A Koi Pond?

Chlorine is a common disinfectant added to municipal water supplies to control bacteria. While chlorine is effective at killing bacteria, it can also be harmful to fish. For more pond-care guidance, read Are Butterfly Koi Hardy? and review MSD Veterinary Manual: Fish nutrition.

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How Do You Neutralize Tap Water For Fish?
Koi FishJun 29, 2022

How Do You Neutralize Tap Water For Fish?

Tap water can contain chlorine, chloramine, and other chemicals that can be harmful to fish. To neutralize these chemicals, you can use a water conditioner that will remove them from the water. For more pond-care guidance, read Can Tadpoles And Fish Live Together? and review…

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How Long Does Tap Water Have To Sit For Fish?
Koi FishJun 29, 2022

How Long Does Tap Water Have To Sit For Fish?

Tap water typically contains chlorine, which can be harmful to fish. To make tap water safe for fish, it must be allowed to sit for at least 24 hours so that the chlorine has time to dissipate. For more pond-care guidance, read How Can You Tell How Old A Koi Fish Is? and review…

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How Do I Make Sure Water Is Safe For Fish?
Koi FishJun 29, 2022

How Do I Make Sure Water Is Safe For Fish?

Water is essential for the survival of fish and other aquatic organisms. In order to ensure that water is safe for fish, it is important to understand how to test for and remove contaminants. For more pond-care guidance, read How Big Should A 2 Year Old Koi Be? and review MSD…

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Does Chlorine Hurt Koi Fish?
Koi FishJun 29, 2022

Does Chlorine Hurt Koi Fish?

Chlorine is a chemical that is commonly used to disinfect water, and it is often added to public water supplies. While chlorine is effective at killing bacteria and other microorganisms, it can also be harmful to fish. For more pond-care guidance, read Can I Put Goldfish And…

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Do You Need To Put Chemicals In Pond?
Koi FishJun 29, 2022

Do You Need To Put Chemicals In Pond?

A pond is a body of water that is typically smaller than a lake, and is often found in a park or in someone's backyard. Ponds can be home to a variety of different animals, including fish, amphibians, reptiles, and mammals. For more pond-care guidance, read What Are The…

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Can A Fish Recognize Its Owner?
Koi FishJun 29, 2022

Can A Fish Recognize Its Owner?

It is a common belief that fish are not intelligent and cannot recognize their owners. However, there is some evidence that fish may be able to recognize their owners and respond to them in a positive way. For more pond-care guidance, read Why Do Koi Swim In Circles? and review…

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Why Do Koi Stay At The Bottom Of The Pond?
Koi FishJun 29, 2022

Why Do Koi Stay At The Bottom Of The Pond?

Koi are a species of freshwater fish that are popular in ponds and aquaculture. They are a member of the carp family and are native to East Asia. For more pond-care guidance, read Should I Put Snails In My Koi Pond? and review MSD Veterinary Manual: Fish nutrition.

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Why Do Koi Lay On The Bottom?
Koi FishJun 29, 2022

Why Do Koi Lay On The Bottom?

Koi are a domesticated form of the common carp and are kept as pets in outdoor ponds and water gardens. They are popular for their bright colors and patterns and are often seen swimming in circles at the bottom of ponds. For more pond-care guidance, read Can I Put Bluegill In…

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Can You Put Too Much Lime In A Pond?
Koi FishJun 29, 2022

Can You Put Too Much Lime In A Pond?

Lime is a popular choice for treating ponds because it is effective at raising the pH of water, which can become too acidic over time. However, it is possible to add too much lime to a pond, which can have negative consequences. For more pond-care guidance, read Can I Put…

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How Often Should You Lime A Pond?
Koi FishJun 29, 2022

How Often Should You Lime A Pond?

Lime is a white, powdery substance that is produced by heating limestone. It is used in agriculture to neutralize soil acidity and to add calcium to the soil. For more pond-care guidance, read What Time Of Year Should You Buy Koi? and review MSD Veterinary Manual: Fish nutrition.

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