View Full Version : sexing butterfly koi

03-28-2010, 12:55 AM
I just recived a 13" butterfly( still trying to narrow down what type) I was just wondering ;
Is there any way to tell the sex that is different in butterfly's than standard koi?
any info would help, thanks:confused:

03-28-2010, 01:58 AM
Flip it over. Or, wait a couple of years and see if he/she has eggs.


03-28-2010, 09:47 AM
well if this helps any: I recieved the koi from a guy who was closing his pond. the conditions there were a little less than perfect and he just did not have the time to keep it up. he had 6 large koi and not sure witch ones breed last year so the smaller (4") ones are mostly orange and yellow. there was another large butterfly(yellow) that had a belly full of eggs and the one I took did not( thats why im leaning toward male, I know rocket science,lol) I just didnt know if all females produce eggs at the same time.
I do have some pics but my camera is not the greatest and I did not want to remove them from the QT so soon just for a pic and add more stress.

03-28-2010, 09:51 AM

347880I know the pics arnt that great I will try to get better ones here soon.

03-28-2010, 12:54 PM
The first is a yamabuki, second is a kohaku. They could still be too young to have eggs yet.


Longfin Lover
03-28-2010, 01:47 PM
:cool:Always looking for Butterfly threads. :no:Sorry I can't help you on sexing yours...Mine are young.

Comparing the shape of their fins seems more difficult.
Good luck,
Longfin Lover

03-28-2010, 09:21 PM
If I had to take a guess, they look like female. If they had the same genetics as mine, they would be with that shape. But some breeders of longfins breed a stockier thicker koi, so I cannot be sure from your picture.

My males are long and tapered and yours appear fat in the middle, but it is hard to judge from just one picture.

03-28-2010, 10:29 PM
I would guess both female, but are you sure the Kohaku is really butterfly? It just looks like it has bigger fins, any chance at better pics?

03-29-2010, 09:42 AM
I hope these are alittle better. im no photagrapher. sorry again they are right around 13".

03-29-2010, 11:05 AM
I am not an expert but I do breed my koi. I would think the kohaku is male, he appears to have a tapered body. The yamabuki appears to be a female and may be carrying eggs.

03-29-2010, 02:46 PM
definately carrying eggs.

03-29-2010, 06:18 PM
Thank you all for your imput. Well if the yamabuki is carrying eggs when should i expect to see eggs in the QT(orwill i even see them?) then how long after will i see fry?

03-29-2010, 10:26 PM
If there is a male present and some spawning grass, the koi may spawn. If they spawn, you will need to remove the adult fish or they will eat all of the eggs and any fry that hatch! Good luck...I think!!