Koi Sexing

[Rooshdee1280]

I have been searching throughout all threads about how to distinguish between a male and a female koi.Can anyone help me out.Thanks.

 

[DrDave]

There are a lot of things to look for. How large are your Koi?

 

[Rooshdee1280]

Thanks for replying Dr Dave.I've got 20 koi of 15inch in my pond.

 

[DrDave]

At this size, it is easy. The wide ones are female and the torpedo shaped, sleek ones are male.
As spring comes and the water warms, the females will get wider untill they look like they are going to blow. When the water temp stablizes at 70 degrees, they will lay thier eggs.

 

[Rooshdee1280]

Thanks for the clarification Dr Dave.

 

[coolwind2003a]

Well DrDave
whats the eazy way to sex Smaller kios thats about 6 to 8 inches ??
TKs for Ur help

 

[DrDave]

Under 10" it is not easy for most people to tell, including me.

 

[coolwind2003a]

Thanks Dr
Hope you have a Great one my Freind ! My first female spawning the others were eating her eggs as she was being chased all over the pond Is their any thing that would stop this ??? TKS

 

[DrDave]

I remove the eggs right after the spawn. I put them into a small aquarium and 3-5 days later the fry are hatched.
Then it is important to have food ready for them. I feed live brine shrimp to mine for the first 6 weeks.

 

[DoDad]

Males will have the sand paper or like a guy hasn't shaved feel on the gills but that is mostly when they are in season. Males are also more slender not having the pouch that a mature female has. The male vent is more like a slit than round.
The female vent is round.
Only check the vents on large when sedated.