Zebra Danios breeding help...Please help if you can!?

Ok...so I have 6 zebra danio tetras in with one neon tetra, one black tetra, and two tetras of another type. I took out a breeding pair and put them in another tank that I set up based on what all these websites say. They've been in the tank for a few days now and I don't think she has spawned yet. The male keeps bumping into her all the time too. So what exactly does that mean, and how will you know when she is spawning? Or how will you know if she is ready to lay eggs? I really need help please, any information will be greatly appreciated. Thanks!