I personally did a little research and found that no one has bred the yo yo loach in the home aquarium. I believe anything can be possible. I've personally had fish species that I thought would be difficult to spawn in my aquariums over the years.
You could add a male and if one of the females pair up with the male the other female will be harassed by the pair. You will have to separate or rehome the other female Angelfish.
Congrats!
Yes it's very exciting when fish spawn in your care. Everything you did triggered the breeding. Also great to hear about the micro fauna the fry have a instant food source.