Q&A for How to Breed Koi Fish

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  • Question
    What is this breeding mat? Where can I order one?
    Community Answer
    You can get one on Amazon.com, or you can make your own, which would probably be cheaper.
  • Question
    My carp has little white spots on it. What do I do?
    Community Answer
    It could be ich. This is a bacterial infection. Try talking to your local fish store about actions you can take to stop it, as it can spread quickly and can kill your fish if it persists for too long. Take pictures as well to show your pet store. Make sure your water is clean and clear.
  • Question
    What is the best color pattern for koi?
    Community Answer
    I like Kumonryu, it is black and white. There's also the very pretty Kin Kikokuryu, which has gold, black and yellow.
  • Question
    How can I tell male and female koi apart?
    Community Answer
    It is not hard to identify a koi's gender. Male koi are quite slender and have thin fins. There colors are vibrant. Female koi are fatter and not as brightly-colored.
  • Question
    My water looks clean (about 3000 gallons). However, it has a coppery look to it. Can you tell me why that might be?
    Emily Greenslade
    Community Answer
    it may be your decor, if you have plastic toys or any non-natural plants. It may also be because you don't clean the water thoroughly enough before you put it in the tank.
  • Question
    What is best to use to keep algae out of my pond?
    Gini Pug
    Community Answer
    You can get algae-eaters, such as otocinclus catfish. Keeping live plants will remove some of the nutrients algae needs to grow too.
  • Question
    What size are the baby koi offspring initially?
    Community Answer
    The baby koi offspring will measure 1/4 inch or less when they first hatch.
  • Question
    How do I make a breeding mat for my koi?
    Giovanni Carlo P Bagayas
    Community Answer
    You can use yarn or plastic twine for the artificial breeding mat. You can also use live plants like hornwort.
  • Question
    Is it hard to breed koi fish?
    Drew Hawkins1
    Community Answer
    Koi fish can be fun and valuable to breed, but the process can be time consuming. But that doesn't mean it's impossible! To get your koi to breed, you need to create the right environment for them. A clean pond is important for the health of the koi and their spawn. Use a specialized koi pond filtration system to keep the water clean during the breeding season. These can be expensive but are necessary for breeding. You can also increase your chances of the koi breeding by keeping them well fed for the month before you breed them. Feed the koi as much as they can finish in 5 minutes. Whole meal bread, oranges and whole lettuces are great nutritional food options. It's also helpful to give your fish a place to lay their eggs. A fry mat is a flat and sticky mat that gives the koi a place to lay their eggs. If koi can’t find a place to lay their eggs, they won’t always mate. Place the mat in an obvious place at the bottom of the pond.
  • Question
    What time of year do koi lay eggs?
    Drew Hawkins1
    Community Answer
    Choosing the right time of year to get your koi fish to breed can greatly increase your chances of success. For the best results, breed your koi in late-spring or early-summer. Koi tend to breed when the weather is warm and the water temperature has risen. It is important to be prepared as koi can produce up to 1 million eggs. If you don’t have the right conditions or enough capacity for baby koi, consider removing the males from the pond during this season. You will need a pond that is 3 feet (0.91 m) deep and 6 feet (1.8 m) by 8 feet (2.4 m) foot wide to house 5 koi.
  • Question
    How do I take care of baby koi fish?
    Drew Hawkins1
    Community Answer
    Young koi fish are actually pretty easy to take care of. Usually, koi eggs start to hatch after about 4 days. If you are breeding the koi for profit, remove the parents out of the pond as soon as you notice the eggs or the presence of froth on the water so they don't eat any of them. Feed your baby koi powdered koi pellets after about 10 days. Crush up the koi pellets using a blender or mortar and pestle until they are in a fine powder. Sprinkle the powder over the pond. Pour in enough powder to last the fish about 5 minutes. Feed the koi 4 times per day so they've got everything they need to grow up healthy and strong. It can take a few days for the koi to get used to eating the powdered food and over time, you'll learn how much food the baby koi will eat during each 5-minute feeding session.
  • Question
    What is the best water temperature?
    Julia
    Top Answerer
    Koi tend to thrive in water temperatures between 59°F (13°C) and 77°F (25°C).
  • Question
    I have two pet koi, and I wanted to breed them. How will you know if the koi is a boy or a girl?
    Bishwadeep Dhali
    Community Answer
    If the vent of the koi near the anal fin is swollen, it's a female. If it's smooth, it's a male.
  • Question
    How many males do you need to successfully breed?
    Bishwadeep Dhali
    Community Answer
    A good rule would be one male koi per two female koi to ensure proper fertilization of the eggs.
  • Question
    How do you make a breeding mat?
    Laila Potter
    Community Answer
    You can use yarn or plastic twine for the artificial breeding mat. You can also use live plants like hornwort.
  • Question
    How do I make a breeding mat?
    Laila Potter
    Community Answer
    Use yarn or plastic twine, or you can use live plants like hornwort.
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