So I had some time to actually sit next to the pond and enjoy the fish today. I noticed that two of the baby goldfish seemed to have grown a lot compared to the others. I looked more closely and then I saw that they had barbels! Baby koi or hybrids! They are more shy than the other fish so I can't see if they have a single pair of barbels or two to determine if they are pure koi or a goldfish/koi hybrid. I didn't think any of my koi were female, but there is/was a female goldfish. I think they are from the spawning where I gave away a lot of the babies. Won't those people be surprised how big their 'goldfish' is getting!