Yah judging by the size of what i am seeing right now, even the smallest daphnia species is the same size or bigger than these larva.
I had been assuming the fry would be swimming after the egg sac was absorbed (like tilapia) but i read a little and it looks to not be the case. They actually filter feed in a larva state for a while. I havent really found a great resource that talks specifically about what each state does and how long it lasts but i am sure it's out there and i will find it.
In the meantime i hydrated 1/8 ounce of bread yeast and added it to the tank. It's a little cloudier than i meant for it to be, but i expect the yeast to stay suspended and i figure yeast is a better food source than nothing.
It's a lot more difficult to see now but it looks like there's more "shiny spheres" today than there were yeasterday.
brian
