Well, the fry are a week old today. The largest are a bit over 0.2 inches long.
I did something incredibly stupid, though. The tank was filthy on Sat., and I had to get in there and clean up a bit. I unplugged the heater to take a bit of crud out of the bottom, then forgot to turn it back on!
So, I woke up on Friday morning, and forund the tank at 68 degrees, lots of dead fry, and a bad case of velvet.
Adjusted the temp, there are still at least 10 or 15 fry, maybe more. They are being treated, and most will probably be okay. What a stupid mistake, won't be doing that again anytime soon.