I've only had C.Simulatus spawn for me, quite easy but tiny eggs.
Although I am aware that the ones you mentioned have been bred in the aquarium before.
Heres my video of C.Simulatus spawning and the fry
[ame="http://www.youtube.com/watch?v=yaSxdQGy5pc"]http://www.youtube.com/watch?v=yaSxdQGy5pc[/ame]
Cheers
Gemma