They're looking really nice!
I've got a whole tankfull of their siblings from the same spawn, and a second tankfull of at least half siblings. Your babies mother was one of two kois that were with their dad at that point, but as I didn't see the spawning (only dady gaurding) I'm not sure which did the deed. :unsure: The younger spawn I know who the mommy is....
And watch them carefully! I'm not sure, but I think some of their siblings might be showing pearlscale. I DO know that their dad carries a single dose of pearl. But I haven't a clue about their mom.....
Amanda.