Well, first of all you need a male or two to chase her around while she's laying them. She'll lay 200-400 or so. You'll need a shallow tank with large-sized substrate like marbles on the bottom for the eggs to fall through to safety, or else the fish will eat them.
Next, you'll need another tank to put the adult fish back into after spawning so the eggs can hatch in safety.
While you're waiting a couple of days for the eggs to hatch, make ready some teeny-tiny food for the fry. There are lots of things you can use. Greenwater is my personal favorite for the first week. If you look up greenwater I'm sure you'll find plenty of info on how to make and use it. Other popular choices are things like eggyolk emusion or microworms. After that first week of headaches with tiny foods they'll be big enough to gobble up ordinary fishfood flakes which you have ground up into a fine flour.