I'm using plastic wrap on the top, and I wasn't opening it too much I don't think. But it had been shut all night, and that's when all the bubbles disappeared. So I dunno, it's probably my fault though. The side I open is the opposite side of the nest area btw.
I think I am going to recondition and try again in a few weeks. I can tell she's been fighting back now, because the male has some tears on his dorsal. Can I condition the male in the spawning tank, in hopes that he makes a nest under the cup, then I can add the female if he does? He ALWAYS had a nest in his tank every day, so I thought he'd do well, but I guess not.