YEA!!!!! I remember what that feels like.
Angelfish fry can take as long as 7 days to start free swimming. I usually don't start the BS hatchery until the day they free swim. Since the shrimp take about 24 hours to hatch and the fry can live off the reserves they've stored from the yolk sac for that first 24 hours, that's soon enough.
However, with some varieties of Angels, 24 hour old brine shrimp are already too big for the fry to eat. So pre-making brine shrimp for Angelfish fry has it's pitfalls other than nutritionally.
Thanks for this Clem. It does show that there is soo many variables as to what is what that I still wouldn't claim to know what the fish Gillie is asking about actually is tho
I started mine on green water ( infusoria) but other microfoods should work as well.
Then their is the pics of the juv Leopoldi which has spots too but is missing the defining large dorsal spot. So, unless the breeder can give you some more facts, here is my assumption: Since Peruvian Angels seem to be easier to breed than other wilds and this one is still only 2 generations from wild and this fish has the spotting similar to a Peruvian scalare, my guess would be that it's a Peruvian scalare not an eimekei or leopoldi. Would I put money on this guess? Heck NO!!!! Not enough info to place my bet with. What's troubling me about my guess is the lack of the indentation at the snout as in pic E02 however, the fish in pic E06 doesn't have as pronounced an indentation and it may be that the fish you are asking about is too young to have that feature yet. So you see, I wouldn't bet on anything with the information provided so far. 
This was a first for me as I had been checking other failed spawns and no ammonia was present. So I quickly added some PRIME and a cycled sponge filter and thankfully, tonight the ammonia level was back to 0. (whew!) I fed the tank some BBS and using a magnifying glass, I could see that the fry had eaten but they are just hanging out at the bottom. I have no idea how long there was ammonia present and this may have something to do with it but then again, this is a type that is known to be genetically weak and difficult to raise so I can't say for sure that "I am cured!!!" of the fry issues. The real test is going to come from the next spawn by a proven pair. If their fry survive and swim, then I will declare the issue solved ( it would have been the diet. ) Of course, the 2 best pairs to try just spawned the other day and those eggs are all gone now. 
But their next ones are just around the corner. 
Today was the day!!! I have swimmers......with a twist tho.
Okay, this is the original 1/2 Black pair's spawn. They were the only ones to have a good spawn since July. This one was a large spawn and a large hatch out as well ( bigger than their successful spawn) but the fry were staying very close to the bottom so I ran some tests on the water using my new test liquids. At this point, the tank had just an airstone in it with no filtration. Much to my surprise, there had been a rise in ammonia in the tank.
Today was the day!!! I have swimmers......with a twist tho.
Okay, this is the original 1/2 Black pair's spawn. They were the only ones to have a good spawn since July. This one was a large spawn and a large hatch out as well ( bigger than their successful spawn) but the fry were staying very close to the bottom so I ran some tests on the water using my new test liquids. At this point, the tank had just an airstone in it with no filtration. Much to my surprise, there had been a rise in ammonia in the tank.
in it, then you will all know. ( They were still swimming this a.m. ) Hope you have a great day celebrating.
As for safe, I can't be. Roomie has me going shopping today. Eat up: that's my bad Thanksgiving habit. Rest up, there's no rest for the weary. I'm working. 
Oh, by the way I don't see black velvet Angels anymore. I remember them when I was a kid, they kinda appeal me.
