Angel fish babies

[somethingsfishy]

So after many tries, my angelfish have laid eggs that have now made it to wigglers. I'm excited but not fully prepared. I know they eat bbs but I don't have any. they are about 72 hours old and I also know I have till about day 7 before I feed them. What's a good DIY bbs hatchery? Could I use flake only? Any input is welcome. Thanks.

[bob mccoy]

google home made bbs hatchery theres a lot of them there