I would say I have about 40-50 left too. They're doing well, hungry little fellas. They're still so fragile though. I don't think I want to raise another set of fry if the parents lay again. Hopefully I'll get some of these to survive. I'm feeding them freshly hatched baby brine shrimp as well as frozen baby brine, and Hikari first bites. I'm trying to get them a well balanced diet early so they don't get too finicky and only want baby brine. Do you see the colors of yours yet? I can tell that some are going to be lighter and some darker and some have a little orange on them. The parent's are marbled koi's so the baby combo of colors should be interesting. Share a pic of your fry if you can.