Hi. If they are in a community tank, set up a separate hatching tank, it can be a rubbermaid container if need be, use tank water to fill it, and then gently scrape the eggs off of the glass with a razor blade or an extremely gentle fingernail. After a few hours of laying them, they harden up to be able to handle them and roll them off of the glass if you are really gentle.
Once you have them in a separate tank (or you can use a breeder net maybe), you want to keep water flowing over them so they don't fungus, or use methylene blue or some other fungus inhibitor. You could also just remove any eggs that start to fungus up as you see them. The eggs should hatchin a few days and they fry will look pretty much like eggs with tails.