Koi care collection

Koi Water Treatment

A growing library of clear, useful guides about koi water treatment.

Can You Shock A Koi Pond?
Koi FishJun 29, 2022

Can You Shock A Koi Pond?

Yes. Koi can be stressed by rapid changes in temperature, pH, source water, oxygen, or treatment exposure. Make measured changes and test before correcting.

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How Much Hydrogen Peroxide Do I Put In My Pond?
Koi FishJun 29, 2022

How Much Hydrogen Peroxide Do I Put In My Pond?

Hydrogen peroxide is a chemical compound with the formula H_2O_2. In its pure form, it is a pale blue liquid, slightly more viscous than water. Hydrogen peroxide is the simplest peroxide and finds a variety of uses as a strong oxidizing agent. For more pond-care guidance, read…

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How Do I Clear Brown Murky Pond Water?
Koi FishJun 29, 2022

How Do I Clear Brown Murky Pond Water?

Brown, murky pond water can be caused by a number of things, including leaves and other organic matter, algae, and even silt. While it may not be the most pleasant to look at, there are a few things you can do to clear it up. For more pond-care guidance, read How Long Does…

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How Do You Clean A Cloudy Pond Without Chemicals?
Koi FishJun 29, 2022

How Do You Clean A Cloudy Pond Without Chemicals?

A cloudy pond can be a nuisance, as it can make the water appear dirty and uninviting. There are a few different ways to clear up a cloudy pond without using chemicals, which can be harmful to the pond's ecosystem. For more pond-care guidance, read Why Did My Orange Koi Turn…

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How Do I Reduce Algae In My Pond Naturally?
Koi FishJun 29, 2022

How Do I Reduce Algae In My Pond Naturally?

Algae is a common problem in ponds, and there are a number of ways to reduce it naturally. Some methods include adding pond plants, using a pond skimmer, and maintaining proper pond pH levels. For more pond-care guidance, read How Many Koi Fish Is Good Luck? and review MSD…

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How Can I Make My Pond Clear?
Koi FishJun 29, 2022

How Can I Make My Pond Clear?

Make a pond clear by separating algae, sediment, dissolved color, and organic waste, then correcting the nutrient, flow, filtration, or runoff problem behind it.

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Does Green Pond Water Harm Fish?
Koi FishJun 29, 2022

Does Green Pond Water Harm Fish?

Green pond water can harm fish if it contains high levels of algae and other pollutants. When these levels are too high, the water can become oxygen-deprived, which can kill fish. For more pond-care guidance, read How Do I Get Rid Of Algae In My Pond Without Killing The Fish?…

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How Do You Make Tap Water Safe For Koi?
Koi FishJun 29, 2022

How Do You Make Tap Water Safe For Koi?

Koi are a type of fish that are often kept in ponds and require clean, fresh water to stay healthy. While tap water is safe for humans to drink, it often contains chemicals and pollutants that can be harmful to koi. For more pond-care guidance, read Is A Waterfall Enough Oxygen…

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Is Pond Salt The Same As Aquarium Salt?
Koi FishJun 29, 2022

Is Pond Salt The Same As Aquarium Salt?

Pond salt and aquarium salt are both types of salt that can be used to help maintain water quality in ponds and aquariums. Both types of salt are made of sodium chloride, but pond salt also contains other minerals such as magnesium sulfate and calcium carbonate. For more…

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