Also was not expecting so many baby fishes this year. I had 4 small goldfish, shubunkin, added last September, about 3-4 inches. Then added the 4 koi this spring, about 4-5 inches. Have five babies. Not sure but one this morning looked like it might be a koi, it looked like the Chagoi, I know it takes awhile to know for sure. Just was not expecting so many this year, I was thinking next year that would happen.