raising koi fry in this article. I will guide you on how to raise koi fry from newly hatch to marketable size.

Make sure that you provide plenty of aeration for your koi fry and this is especially true in the summer when warmer water temps mean less oxygen carrying capacity of water.

Some other foods that you can feed are frozen brine shrimp, growing live brine shimp in your containment tank or main pond and freeze-dried krill and daphnia.

Our baby koi  are grown in natural mud pond watch video here

You have breed your koi fish successfully and now the koi fish eggs are hatching.

Now you got koi fish fry, now what? You are now wondering how to care and raise them.

Fear not I am here share you my proven blueprint in raising and caring koi fish fry in this post.

I am also adding my koi fish fry growth rate videos for you to have an idea what do koi fish fry looks like during its early life.

Like koi fish fry weekly growth rate and monthly koi fish fry growth rate


Raising koi fry weekly videos updates below

This is how a 3-week old koi fish fry looks like

koi fry 3-week old


This is My 1-week old koi fish fry from Showa Female, sanke and hi utsuri males breeders


This is the update of my koi fish fry they are now 2-week old

2-week old koi fish fry developments are

  • Coloration develop of the 2-week old koi fish  fry some still remain yellows some have black patterns appearing already
  • The body mass increase and getting more volume compared to 1-week old koi fish fry who’s body is thin like a needle
  • There are Tobi koi fish fry appearing already



And this is the actual spawning video of the koi fish fry breeders Spawn last October 2


koi eggs in pond

koi eggs in pond koi fry
koi eggs in pond

what do koi eggs look like for those who did not see what do koi fish eggs look like watch the video below

koi eggs hatching time here in my place is just 2 days since I live in a warmer tropical region


raising koi fish fry is easy you just feed them the right food and give them the right environment to live.

maintain the water quality by adding strong aeration and for their first week of life you can feed them hard boiled egg yolk

Watch the video here on how to feed koi fish fry with hard boiled egg


Here is the update of my koi fry they are now 3-week old



Here is a video updated of my koi fishfry they are now 4-week old


Here is the update of my koi fish fry from female showa, hi utsuri, and sanke male koi fish breeder

5-week old koi fish fry


6-Week old koifry

Here is an update of my koifry they are now 6-week old koi fry

To be continued…. stay tune

raising koi fry continued

baby koi fish- Everyone knows koi fish for their underwater beauty. But not everyone knows the effort that goes into raising them.

raise koi fry  Sometimes larger koi will eat smaller koi. While some koi are
eliminated naturally, koi owners use a process called culling to keep
numbers of koi fish down to appropriate levels.

Culling is recommended once a month for the first three months. Raising koi can be really demanding, especially throughout the early stages.

what do baby koi fish look like They can range from milky white to yellow or green. After the next two days, the koi fish eggs will hatch. These small koi are called koi fish fry. After the koi fish eggs hatch, baby koi attach themselves to the side walls of the pond.

what to feed baby koi

What do you feed small koi fish?
A well-balanced Goldfish or Koi diet consists of:
Flake, pellet, frozen or freeze dried foods.

Goldfish and Koi need more carbohydrates than other freshwater
fish; feed them foods specifically formulated for Goldfish and Koi.

how fast do koi fish fry grow

How long does it take for a koi fish to grow to full size?
They usually don’t get more than 15 inches but the largest types can be around 36 inches. They normally live for about 30 years but its not unusual for them to reach 100 if well cared for. The oldest koi was 226 when it died in the 1970s it can take more than 10 years to get to full size.

koi fish  fry color usually for one week old are yellows


what to feed koi fish fry

Baby koi can eat food out of your refrigerator, such as hard-boiled egg yolk.

Watch Video here on how to feed koi fry hard-boiled egg yolk


Start feeding your koi fry 4 days after hatching since at 4 days from
hatching their digestive system is already fully develop

They can also eat commercial foods, such as baby brine shrimp and freeze-dried krill.

Throughout the first month of life, feed your young koi four times a day

The fry should be fed a quality food, such as baby brine shrimp,
aby fish food, or quality flake food ground into a fine powder.

Feed the fry small amounts several times a day. Maintain good water quality by performing regular water changes.

raising koi fry more topics discuss

what color are koi fish fry

Since you only have koi and goldfish, then the fry are either koi, goldfish, or hybrids. The young are dark colored, then color up as they mature.

Don’t worry goldfish/koi fry are born black,and then they pick up colour as they get mature.

Are koi fish born black?
These black baby Koi are called fry. Color of the Koi will start to appear sometime between week 3 and 12 after they are born.

Black Koi are often 36 inches in length, and need very large ponds in which to grow and be healthy. If you notice, your fish has become duller or brighter in color it is due to the diet.

Do Koi change color as they grow?
As koi grow they’ll change color and pattern, and some may go from patchy all over to totally one tone (often white) after a few years.

This is normal and not something you can control, although you can sometimes make better predictions by looking at the fishes bloodlines before purchase.

Do Koi change color?
It’s the same thing with koi. Their scales can change color depending on their exposure to that bright orb in the sky.

They won’t turn an Oompa-Loompa orange during the summer (though that may not be a bad thing to some koi keepers!), but you may notice a color change in some of your fish after their winter slumber.

Why is my koi fish losing its color?
Skinny fish can often be very brightly colored. Once you bring them home and feed them they start to gain weight, and can lose their color if not provided with an adequate diet.

Any kind of stress can cause koi to quickly lose their color. One of the most common causes of stress is poor water quality.

What color are koi babies?
Color. Some baby Koi fish species may not exhibit the colorful scales of older Koi. It may take a year for the colorful patterns to show. Possible colors include silver, red, blue, yellow, orange, brown and black

How long does it take for koi fish eggs to hatch?
4 days
Your koi eggs will hatch around 4 days after they are fertilized. They will then attach themselves to structure like the side of the tank or pond for 2-3 days where they will be feeding off their yolk sac.


For newly hatch black and then after a week it turns yellow
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koi fry water temperature


Raising Koi Fry How fast do baby koi grow?
How Fast Do Koi Grow? Under the right conditions, the average Koi will be between 6 and 8 inches by the end of its first year, and by the time it is 3 years old it will have reached its full adult size.

How often should I feed Koi fry?
In cooler water (65-70) they should only be fed once per day, if that. In much warmer water (76-82), three times per day is not “crazy,”‘ however, you have to be wary of bacterial blooms (cloudy water and low oxygen levels) if you feed heavy and there’s a lot of waste.

How long do Koi fry take to grow?
Taking a koi from 8-10″ to a mature show koi is about 3-4 years of daily work. Then you have about 4 years where they have reached the champion size 6 or 7 or so. They still keep growing as they get older but it may slow down to an inch a year or so.

rasing koi fry growth rate depend on the husbandry, like enough space and feeds

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feeding baby koi fry

Baby koi do not typically need to be fed in the first few days. They live off of their yolk sacks and small organisms found in pond water.

However, if the koi fry are hatched outside of a pond setting, they will require specialized feeding.

Take note you will start feeding your koi fry 4 days after hatching when their digestive sytem organs are all develop and they are ready to feed.

Feed it hard boiled egg yolk, daphnia magna or brineshrimp

what do you feed new koi fry

After that, you can work on feeding your koi fry larger and larger solid foods. Baby koi can eat food out of your refrigerator, such as hard boiled eggs.

They can also eat commercial foods, such as baby brine shrimp and freeze-dried krill. Throughout the first month of life, feed your young koi four times a day.

How often should I feed my koi?
As a general rule of thumb, you should feed your koi and goldfish once per day, no more than they can eat in 5 minutes.

If there is still uneaten food left after 5 minutes, try feeding less next time. The amount of food required by koi and goldfish will vary widely depending on the season and temperature of the water

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Published by Giovanni Carlo

I am a koi fish keeper and breeder a husband of beautiful wife Maybel and beautiful daughter May Carl I have been in fish keeping hobby for over 35 years. Like many kids in the 80's We catch fish in the rivers and canals and kept it in the "pasong" local visayan name for pond. or a large mayo bottle since We don't have aquariums yet on that time. decades later their is a small petshop open in my place and that starts me from buying aquarium and fishes that are sold in the pet store decades later start growing goldfish and koi fish until today.

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1 Comment

  1. I like your video its very educational, i tried to breed koi in my place but unfortunately it was not hatched, what’s the possible problem in my breeding. Please advise, im a beginner and this is just my past time. TY

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