I have goldfish and Koi in my pond. My gold fish I have 4 all under 6"
and at the time 1 15"koi.

The goldfish spawned for sure..hundereds of black fry.
Now I got 2 more koi one was full of eggs when I got her. The next
night my 3 koi went chaseing mad around my pond messing up all plants!!

Lasted till 7 am. A week later I had a whole new batch of fry these
were clear looking to a very pale yellow orange, all you could see was
their deep black eyes. Now those same babaies are about the size of a
mans thumb nail some are still smaller than that. After 2 weeks of
finding them. Now those same babaies are getting black spots patterns
on them. I have tried to look at them in a glass jar the see if they
had barbels. I thought I saw them but they move so fast I can not tell.

Out of them they all started the same size but some are very slow in
growing but also getting black spots on them. Could these be koi
babies?
They others GF Fry are growing much faster than these are.