Koi Fish Breeding Tips The moon is full. It reflects off the water of a fishpond full of koi. It is April and the koi are getting ready to breed.
For some, this is an unexpected event that leads to the sudden
intrusion of many new fish in their formerly spacey pond.
But for other koi owners, this is an exciting and anticipated time of year.
Those who are excited about breeding koi fish, start the preparation
well in advance of the April to July breeding season, and their hard
work pays off in superb koi of exceptionally high quality.
Breeding koi fish can be a challenge, in part because of the sheer size of the fish.
Koi can grow to be large, which can pose a problem when trying to find space for newly-bred fish in a pre-existing pond.
Having plenty of space for all the fish, including both the parents
and their offspring, is crucial to the health of all the fish.
It is also vital to get good, high-quality fish to breed. High-quality offspring can only come from high-quality parents
. If you are looking to buy koi for breeding, you will have to be
knowledgeable on exactly which type of koi you want and what the
signs of a healthy, high-quality fish of that type are.
A good place to start is the coloring and pattern on the fish.
The vividness of the colors and crispness of the distinction between
colors can often indicate the quality of the fish.
Also look at the age of the fish you buy for breeding. Both too young and too old can be detrimental.
A very young female koi may have eggs that are too soft, and therefore more easily prone to damaging.
You could lose many of the offspring produced by a young koi. On the other end of the spectrum is a koi that is too old.
As you may expect, this sometimes leads to the opposite problem. An older female koi could produce eggs with shells that are too
hard, which may prevent sperm from being able to fertilize them. The ideal age is four to five years old if the koi is intended to be used for breeding.
The weather and even the moon can affect breeding. Koi like to
breed during a season when the difference between the high and
low temperature for the day is very slight.
They also like to breed during the full moon. If possible, aim to have your fish breed when the moon is full or nearly full, as this helps encourage the fish to spawn.
One spawning can result in literally thousands of eggs. The male fish will fertilize the eggs after they are out of the female.
The male will also try to help the female release the eggs by pushing her from each side.
Watch the fish carefully during this to ensure the male does not injure the female.
Even if you’ve done everything correctly up to this point and gotten your fish to breed, your work is not quite done yet.
Even after breeding there are steps to be taken to ensure the
continued health of your fish and their offspring.
Separate the fish after the spawning to allow the female to rest.
After this point, it is your responsibility to take care of your new fish and their parents.
With diligence, attention and care, your pond may soon be full of
high-quality, individually bred koi guided from egg to maturity by you.
How many eggs do koi fish lay?
It is possible though that younger Koi will breed but their offspring will be of poor quality. The female is capable of carrying around 100,000 eggs for every 1kg of body weight. So a female of 10kg in weight will pass 1,000,000 eggs of which 60% will hatch.
Is breeding koi profitable?
Koi breeding can be profitable in one of two ways: 1) You raise baby koi fish and sell them when they are much larger. 2) You breed purebred koi fish varieties for a living. … Make sure to give your breeding koi couple some privacy when it’s time for them to mate. Koi need a place to lay their eggs.
Koi Fish Breeding Tips
How do koi fish reproduce?
In a pond setting, koi will breed as a flock, or group. … During spawning the male koi will become extremely aggressive. Male fish will pursue the female koi around the pond, smashing into them repeatedly. This battering behavior is designed to force the eggs from the female’s body
At what size do koi breed?Koi Fish Breeding Tips
It takes a koi to develop to certain size before the female will spawn. Now the size might be considerably smaller that what a normal female will reach in size at 22″ or greater. You might see some 14-16″ develop egg mass but it depends on what you mean by small.