Koi care collection
A growing library of clear, useful guides about koi fish.
Koi are a type of fish that are often kept in ponds, and they are known for their bright colors and patterns. Beneficial bacteria are microorganisms that can help to keep a pond clean and healthy. For more pond-care guidance, read Why Are My Koi Fish Jumping Out Of The Pond?…
Read guide
Nitrate is a common problem in koi ponds and can lead to poor water quality and unhealthy fish. There are a few different ways to reduce nitrates in a koi pond, including using a nitrate filter, adding plants, and doing regular water changes. For more pond-care guidance, read…
Read guide
UV light is commonly used in ponds to help control algae growth. There are a few different ways to do this, but the most common is to use a UV clarifier. For more pond-care guidance, read Where Should A Koi Be Placed In A Home? and review MSD Veterinary Manual: Fish nutrition.
Read guide
A pond clarifier is a device that is used to remove suspended particles from water. It is often used in ponds and aquariums to improve water clarity. For more pond-care guidance, read Do You Need To Add Chemicals To Koi Pond? and review MSD Veterinary Manual: Fish nutrition.
Read guide
Pond flocculant is a substance that is added to water in order to remove suspended particles. It is typically used in ponds and lakes in order to improve water clarity. For more pond-care guidance, read Why Does My Koi Pond Smell? and review MSD Veterinary Manual: Fish nutrition.
Read guide
Biofilm is a layer of microorganisms that forms on surfaces in water. This slimy layer is made up of bacteria, algae, and other small organisms that attach themselves to surfaces. For more pond-care guidance, read Which Fish Like To Be Petted? and review MSD Veterinary Manual:…
Read guide
Barley is a common ingredient in koi pond food, and for good reason. Barley provides koi with many essential nutrients, including protein, fiber, and vitamins. For more pond-care guidance, read What Color Are Koi Babies? and review MSD Veterinary Manual: Fish nutrition.
Read guide
Koi are a type of carp fish that are popular in both ornamental ponds and aquariums. They are a member of the Cyprinidae family, which contains many other carp species. For more pond-care guidance, read Why Is My Fish Laying On Its Side? and review MSD Veterinary Manual: Fish…
Read guide
An air stone is a small, porous stone that is used to aerate water. It is placed in a pond or aquarium and connected to an air pump, which pumps air into the water. For more pond-care guidance, read Is Melafix Harmful To Fish? and review MSD Veterinary Manual: Fish nutrition.
Read guide
Barley straw is a popular pond filtration material, but can you put too much of it in your pond? This essay will explore the pros and cons of using barley straw in ponds, and whether or not too much of it can be harmful. For more pond-care guidance, read Can Fish Live Beer? and…
Read guide
A sponge filter is a type of filter that uses a sponge to trap debris and other particles in the water. Many aquariums use sponge filters because they are effective at filtering out harmful substances and keeping the water clean. For more pond-care guidance, read Do Fish…
Read guide
An air stone is a small, porous piece of stone or ceramic that is used in aquariums and fish tanks to diffuse bubbles of air into the water. Air stones are used to increase oxygen levels in the water, which is beneficial for the fish and other aquatic creatures. For more…
Read guide