I didn’t want to intrude on anyone else’s post with my questions.
I was under the impression koi needed to be 3yrs old to reach sexual maturity. So you can imagine my surprise when I go out to check on my spawning fancy goldies only to see the platinum ogon we bought late last fall at 3” (now over a foot long) being chased by two other males we purchased last fall and two 3yr old males I’ve had since they were small. The two new males from last year are also over a foot. One was 16” when I measured last month.
The female is obviously laying eggs, but will those young males be able to fertilize the eggs?
I am in MN but the platinum female and the 16” male were kept inside in a heated tank over the winter. The male butterfly (bought last fall) was winter outside with the herd.
I was reading about “accumulated heat days” but didn’t know if that applies to males as well.
Another question, my platinum has slightly curled gills. She’s been like that since we bought her. Is this a trait that will be passed on to her spawn? Or is this from possible bad water conditions as a fry?
Here is a picture of the action
Here is the 16” male with her. He is the most aggressive of all the males.