Water Gardening: Koi sexing, 1 by posyblossom

posyblossom wrote:
OH STOP,you are making me laugh! This is your "Doctorate" we are working on here Kim☺

The female pectoral fins are round looking on the side towards the body. The males are straight and kinda pointed on the ends. I confess I just use this to make certain I have the right gender after I watch to see who is trying to pin down who. The males are relentless in chasing females with eggs and will pin them down in their quest to get the female to release her eggs for them to fertilize.

The pic is a female.Note the fin shape on the right? I am looking for a pic of a male,but can't find a good one yet.
LU