When I had my batch of Wakin's. I had them in a 10 gallon tank with a sponge filter. I had it filled all the way up. Its hard to do partials, but it can be done very carefully.
Then I had a second tank set up for the ones that grew faster than the others. (Tobies) its the bigger baby that will eat its siblings. I have a great pic of one I caught in the act.
What helped me so much was my MIL gave me a tank that was long with dividers, she called it a breeding tank for Betta's. I don't know about that, but I do know that it helped me keep them separated. So you may end up with even another tank set up. On that tank I just ran air stones and kept it partialed. I did it about once a week.
Food wise, I went and got some frozen baby brine shrimp. It worked great. I would take the piece and cut into 4 pieces, put it in a glass with a little tank water and let it dissolve. (I would do this about 3 times a day.) Then pour it in. They grew great on it. Then later when they got to be about 1/2 inch I started giving them finely crushed flake food, and regular sized frozen shrimp. The sponge filter also helps feed them, the food gets stuck to it, even though we don't see it but they do. Its funny looking at all of them huddled over on the sponge.
Good luck with your babies, and I hope I helped a little. Wait to you see their little tails, its amazing so small and you can already tell they're Wakin's. You'll be able to spot this at about a quarter of a inch. Its so cute.
Kimberly